Theres also a heightened risk of premature delivery. Lewi L. (2020). If hCG levels are being measured, they may show a slower rise . If you read that and said Huh? youre not alone. After all, when you learned about the birds and the bees, it resulted in one baby. Once twins have been confirmed, your doctor may refer you to a high-risk specialist for the remainder of your pregnancy. MoMo twins share the same placenta and amitotic sac in the womb. 2015;35(3):274-80. doi:10.1002/pd.4538, Van Mieghem T, Abbasi N, Shinar S, et al. Pamela Prindle Fierro is the author of several parenting books and the mother of twin girls. And then when it actually happened and we were all home, it was surreal, Britney said. Often, a later ultrasound reveals a dividing membrane, confirming that twins are actually monochorionic-diamniotic. The Momo Twin Experience. 2012 Jul;28(7):725-9. doi: 10.1007/s00383-012-3073-y. Your doctor may use specialized techniques to improve the likelihood of a full-term pregnancy and better outcomes for you and your babies, including: Steroids: recommended to speed up your babies lung development in case an early delivery is necessary. The only way to detect MoMo pregnancies is via ultrasound;early diagnosis is important as complications can arise which warrant careful, regular monitoring. [10][8] A retrospective study in 2016 argued that there is evidence vaginal delivery can be equally safe and reduce complications for some monoamniotic twins[11] but this finding has not been incorporated into clinical guidelines. (n.d.). If you are pregnant with twins, it is an absolute joy. [3] Monoamniotic triplets or other monoamniotic multiples[4] are possible, but extremely rare. Diagnosis rests on comparing the physical development of both of the twins. The recipient twin often receives the majority of the nourishment in the womb, leaving the donor twin undernourished (smaller and often anemic). If you are having MoMo twins, both Harry and I wish you the best of luck. The egg and sperm join together as in any conception, but the egg splits in two shortly after fertilization. In TRAP pregnancies, one twin develops normally while the other develops without a working heart and many other body structures necessary to function. Levi and Luka look at their twin sisters Lydia and Lynlee, Lydia and Lynlee were born just over a year after their twin brothers, Mum devastated as 'massive' bulldog mauls mental health support puppy to death, Mum says son left with sores all over body after living in 'damp and mouldy home', Pregnant woman accused of Uber murder wants to be released over her 'unborn child', 'My husband refuses to be in the delivery room when I give birth - I'm so upset', Woman forced to give birth to baby that will die immediately due to abortion ban. Something went wrong, please try again later. 57 However, in monoamniotic pairs, a cord coagulation and transection may be preferable as it eliminates the risks of sudden demise due to cord entanglement and thus improves outcome and simplifies . The now 18-month-old twins were a surprise, but a blessing for the Alba family after a miscarriage nine months before, Britney Alba said. Monochorionic monoamniotic twin pregnancies. Clin Dysmorphol. Preterm delivery is often associated with a number of other life-threatening conditions. Most monoamniotic twins are born prematurely, because full-term pregnancy is risky and deemed unsafe, due to the risk of cord entanglement and compression. Premature babies may be put on ventilators until the lungs mature. Miscarriage, stillbirth and foetal anomalies are common complications in such pregnancies. We also may change the frequency you receive our emails from us in order to keep you up to date and give you the best relevant information possible. The https:// ensures that you are connecting to the Reasons Why Twins and Multiples Are Born Early. Our website is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Perinatal mortality in monoamniotic twins is mainly a consequence of conjoined twins, TRAP, discordant anomaly and spontaneous miscarriage before 20 weeks' gestation. MoMo twins occur when a single fertilized ovum or egg results in identical twins and these twins share the same placenta and amniotic sac. FBI Chief Confirms, China Denies Claims, Bengaluru: Jilted Lover Stabs Woman Over 16 Times Over Rejecting Marriage Proposal, Arrested, Shark Tank India 2 For the First Time, All Five Sharks Rejects Investing in Any of the 4 Pitches, Missing California Womans Remains Found in Sam Houston National Forest, EasyJet Pilot Does 360-Degree Midflight Turn To Give Passengers View of Rare Northern Lights Spectacle, Stray Dogs Kills 28-Day-Old Infant Sleeping Next to Mother at Govt Hospital in Rajasthans Sirohi, Mafia Boss Marco Raduano Caught on Cam Escaping High-Security Prison in Sardinia Using Bed Sheets | Video, Hyderabad Student Kills Self in Classroom Over Alleged Performance Pressure, Harassment from Teachers. 2006 Oct;28(5):681-7. doi: 10.1002/uog.3811. Because of this, Britney Alba was checked into the hospital at 24 weeks pregnant so doctors could monitor the twins. These twins are often called mono mono identical twins, and just about 1% of all twins are MoMo twins. Mono Mono twins (Monoamniotic-Monochorionic or "Mo-Mo" twins) are always identical and incredibly rare (about 1 in 10,000 births). "MoMo twins are some of the rarest types of twins, making . 8600 Rockville Pike The types of twinning are more complex than they first seem. Miscarriage of One Twin: The Second or Third Trimester The loss of one baby in a multiple or twin pregnancy can still occur after the first trimester. The site is secure. MoMo babies are always identical twins and are of the same sex because they derive from the same gene set. MCDA twins share a single placenta (blood supply) but have separate amniotic sacs. Britney added: "After all that time in the hospital, it didnt seem real, like it was actually going to happen. Monoamniotic twins are identical or semi-identical twins that share the same amniotic sac within their mother's uterus. MoMo twins mean Monochorionic (single covering sac) Monoamniotic (single amniotic sac or bag of water). This came just over a year after the mother gave birth to a set of identical twins, resulting in the family of two becoming a family of six in two years. Epub 2009 Dec 3. Birth defects and anomalies in monochorionic twins. The other is an abnormal mass of tissue, consisting usually of legs and a lower body, but no upper body, head or heart. Int J Womens Health. 2016;127(Supplement 1):3S. You will be surprised to know how the medical field didn't have many advancements as compared to IT! According to one reputable scientific study, the miscarriage rate of twins is 17.1% (12.1% vanishing twin syndrome and 5.0% complete miscarriages.) J Matern Fetal Neonatal Med. Careful monitoring will be important, and so will a support system that you can count on to help manage stress and anxiety during this high-risk pregnancy. Monochorionic twins are at greater risk of twin reversed arterial perfusion sequence (TRAP sequence). Federal government websites often end in .gov or .mil. Britney was aware of the complications that could arise during a MoMo pregnancy, which has a probability of occurrence ranging from 1 in 35,000 to 1 in 60,000 in the US. A few days after my miscarriage, in which I passed both babies about 30-40 minutes apart and bled extremely heavily needing medication to stop it, I had a talk with a different midwife. The .gov means its official. The amnion is the innermost membrane that holds the fetus and amniotic fluid. This site needs JavaScript to work properly. Low blood supply in one of the twins will lead to not enough amniotic fluid. Talk to your doctor about the risks and benefits of staying pregnant for longer versus delivering your babies sooner. MoMo twins are known to share the same placenta and amitotic sac in the womb. At 24 weeks into the pregnancy, Britney checked herself into the hospital to remain under the medical supervision of doctors. Vanishing twin syndrome usually occurs in the first trimester of pregnancy. They can also see how your baby is progressing week after week compared with previous growth and rates. How Many Placentas Are in a Twin Pregnancy? National Library of Medicine This can be a life-threatening situation. A perinatologist or an experienced twin delivery obstetrician should be consulted, to weigh the risks of the pregnancy, and whether there is any threat to the lives of the babies and mother-to-be. Identical twins might share a placenta and an amniotic sac or the twins might share a placenta and each have separate amniotic sacs. Expectantly managed monoamniotic twins after 20 weeks have a very good prognosis despite the finding of cord entanglement. While this only occurs in approximately 1 percent of monochorionic pregnancies and 1 in 35,000 pregnancies overall, according to Childrens Wisconsin, it is serious. The occurrence of MCDA twins occurs at a rate of three to four in 1,000 live births. Following the delivery of your babies, hemorrhage is also a possibility your doctor will be ready to treat. Identical twins that share a single placenta are called monochorionic twins (MC). (n.d.). We are a group of moms with monoamniotic monochorionic twins, also known as mo/mo, mono mono, MCMA or monoamniotic twins. As always you can unsubscribe at any time. Most multiple pregnancies go well and result in the birth of healthy babies. If the split is delayed, usually a week or so after conception, the processes of growing a placenta, chorion, and amniotic sac are already underway. These include higher rates of severe pregnancy sickness, anaemia, and pre-eclampsia. non-identical twins run on the mother's side of the family . [4] It can show the lack of a membrane between the twins after a couple of weeks' gestation, when the membrane would be visible if present. Bonus: You can. We were told we were having monochorionic monoamniotic (MoMo) twins which meant they were sharing the placenta and amniotic sac. Only 1% of twins are monoamniotic. [1] Other obscure possibilities include multiples sets where monoamniotic twins are part of a larger gestation such as triplets, quadruplets, or more. The rare pregnancy is high-risk and has an occurrence of only 1 in 35,000 to 1 in 60,000 pregnancies in the US. New Delhi: A woman from the US gives birth to 'MoMo' twins, who share the same placenta, amniotic sac, and fluid in the womb. turkey stuffed with rice and meat; boil water advisory near me 2021 The twins can be two girls, two boys, or a boy and a girl. Doctors look for the presence of a dividing membrane that indicates that the two fetuses are in separate sacs. This is believed to lower the risk of cord entanglement and compression. Monoamniotic twins are rare, with an occurrence of 1 in 35,000 to 1 in 60,000 pregnancies.[1][5]. Mono mono twins are often misdiagnosed in the early weeks of pregnancy when the membrane is so thin as to be nearly invisible. This condition increases the risk of complications for both of your babies. You may have heard twins referred to as identical or fraternal in the past. MoMo twins that have been delivered pre-term face many life-threatening conditions, both in the womb and on being delivered. Monoamniotic twinning results in a single amniotic sac containing both twins and occurs in approximately 1% of monozygotic gestations. To connect with Lauren, you can find her on Instagram . Doctors have to balance the risks of the babies' condition in the womb versus the consequences of prematurity. Britney and Frankie Alba have gone from a family of two to a family of six in just over two years, with Britney discovering she was pregnant again just six months after giving birth to identical brothers Levi and Luka. The information on this website is of a general nature and available for educational purposes only and 2005 Dec;45(6):474-8. doi: 10.1111/j.1479-828X.2005.00479.x. By clicking Subscribe, I agree to the WebMD, Smart Grocery Shopping When You Have Diabetes, Surprising Things You Didn't Know About Dogs and Cats, Smoking Pot Every Day Linked to Heart Risks, Artificial Sweetener Linked to Heart Risks, FDA Authorizes First At-Home Test for COVID and Flu, New Book: Take Control of Your Heart Disease Risk, MINOCA: The Heart Attack You Didnt See Coming, Health News and Information, Delivered to Your Inbox, Finding Out You're Having Monoaminotic Twins, Pregnant With Allergies? Twins! Verywell Family's content is for informational and educational purposes only. Birth defects and anomalies in monochorionic twins. Get email updates with the day's biggest stories. In US, a woman ended up giving birth to a set of rarest of rare MoMo twins, an incident that has a mere 1% possibility. MoMo twins share the share the same placenta and amitotic sac in the womb. Monoamniotic twins may also be referred to as monochorionic, monochorionic-monoamniotic, or momo twins. alone. Parenting.Firstcry.com accepts no liability for any errors, omissions or misrepresentations. Momo Twins!- so scared! She recently gave birth to Lydia and Lynlee, who are monoamniotic-monochorionic twins, also known as "MoMo" twins. Lee YM. Such pregnancies have a high risk of complications such as miscarriage, stillbirth and fetal anomalies. Prenat Diagn. Only a few treatments can give any improvements. It was a very high risk pregnancy and the biggest risk was cord entanglement due to there being no membrane between the twins. Mono mono twins have four times the risk of low birth weight as compared to pregnancies in which each fetus has a placenta of its own. What are mirror twins? 2022;4(2):100520. doi:10.1016/j.ajogmf.2021.100520, Vitucci A, Fichera A, Fratelli N, Sartori E, Prefumo F. Twin reversed arterial perfusion sequence: Current treatment options. [1], Cord entanglement and compression generally progress slowly, allowing parents and medical caregivers to make decisions carefully.[4]. Hello, Did first pregnancy tests a week ago - shocked at the +ives because I've had a copper coil (IUD) in for four years. As the babies move around in the same amniotic sac in the uterus, the cords can cross or press against each other, cutting off these vital lifelines. Learn more about how twin pregnancies happen and all about your chances of having a twin. The twins, Lydia and Lynlee Alba, were in the hospitals newborn unit for months before being discharged on December 7, 2022. Identical, fraternal, and mirror? Get email updates with the day's biggest stories. Woman who 'married' rag doll claims their son has been 'kidnapped and held hostage', 'REFUSING TO GO QUIETLY': Prince Andrew demands mansion 'fit for a king' on REGAL estate from Charles - and 'top role' in royal family despite being KICKED OUT, Tom Sizemore dies after Saving Private Ryan actor suffered a brain aneurysm, Family left heartbroken with wife in tears after being kicked out of a pantomime show, Jeremy Kyle Show guest who famously had skull inked on face tragically dies, Roberto Firmino leaving Liverpool and lucrative bonus he sacrificed sums him up, New Partygate WhatsApp messages show No10 aides feared stories on Downing St 'p**s ups' getting out - meaning THEY KNEW they were breaking Covid laws, PartyGate rulebreaking would've been obvious to Boris Johnson - because he was THERE, Dolly Parton's hit songwriter David Lindley dies, Ferry catches fire in English Channel with 183 people on board as lifeboats scramble, Denise Welch tears up as she announces she's become a grandma for the first time, Mum shouts at kids for being loud at night - but CCTV showed the sinister truth, Ruth Madoc glittering career as she makes final on-screen appearance after death aged 79, Subscribe to Daily Mirror and Sunday Mirror newspapers. Although MoMo twins have a high rate of stillbirths associated with them, the team at UAB provided ongoing prenatal care and fetal monitoring to ensure the twins remained well, and the successful outcome was a tribute to Britneys perseverance, according to Rachel Sinkey, an assistant professor in UABs Department of Obstetrics and Gynecology. Fraternal twins are also considered dichorionic. use of this site indicates your agreement to be bound by the Terms of Use. we want to share how we feel about it. Low birth weight. Short answer: monochorionic/diamniotic twins are identical twins who share the same chorion but have separate amnions while in the womb. The terms mono-mono and MoMo are short for"monoamniotic-monochorionic." Follow Us on Instagram | Twitter | Facebook | YouTube | Flipboard | Google News, Designed by Elegant Themes | Powered by WordPress, Bollywood Stars Invested in Indian Startups, Woman Spent 50 Days in Hospital to Avoid Pregnancy Complications, Didnt seem real..: Husband Gives Account of Rare Birth, Hyderabad Man Chops Friends Private Parts, Heart For Texting Girlfriend, Surrenders at Police Station, Australian Man Caught on Cam Punching Crocodile After It Mauls him and Tries to Snatch his Dog | Video, On Camera, Witness Shot Dead, 2 Guards Injured | Video, Video | Four-Year-Old Boy Run Over by Car While Playing Outside House in Ujjain, Video of Live Spider Crawling Out From Mans Ear; Netizens Shocked, Schoolboy Rescues Crow Trapped in Net, Touching Hearts of Netizens, Watch Lizards Resolve Conflict with Wrestling Match at IIM Kolkata, Missing Bolivian Man Rescued from Amazon Forest After 31 Days, Ate Worms & Drank Urine to Survive, Pregnant Florida Woman, Charged with Murder, Seeks Release from Jail as her FETUS is Innocent, 6-Year-Old Girl Seriously Injured After Stray Dog in Malegaon, Shocking Footage Surfaces | Watch, Woman in Aligarh Pours Sanitizer on 5-Year-Old Daughter and Sets her Ablaze for Not Obeying her, China Wuhan Lab Leak Caused COVID-19 Virus? The longer the cords are entwined or compressed, the greater the risk of damage to the cordsand the greater the risk of death for one or both babies. ", Dad Frankie said, "It was definitely a very challenging time in our lives and in our marriage, but it was definitely worth it. Childrens Wisconsin: Birth defects and anomalies in monochorionic twins., Columbia University Department of Obstetrics and Gynecology: Monoamniotic Twins., Texas Childrens Hospital: Monoamniotic Twins.. TTTS can lead to serious illness or death for one or both of the twins. Because of this, Britney Alba was checked into the hospital at 24 weeks pregnant so doctors could monitor the twins. This situation is very rare and may cause risk to the babies due to cord entanglement and other issues. Vanishing Twin Syndrome. Momo twins are also referred to as mono mono twins, which is short for monochorionic monoamniotic twins. Identifiable signs of monoamniotic twins include: It is more difficult to identify separate amniotic sacs because the membranes are so thin that they may not be obvious on ultrasound imaging. The majority results in the birth of two healthy children, mostly (85%) after 32 weeks. Her story was like my MOMYS friend - two episodes of tissue passage a few weeks apart. One twin is usually structurally completely normal. In this condition, one twin's heart (and sometimes other parts of the body as well) fails to develop and the other twin's heart works for both babies. Twin pregnancy with one spontaneous reduction/ intrauterine fetal demise. Many women enter inpatient care, with continuous monitoring,[1] preferably in the care of a perinatologist, an obstetrician that specialises in high-risk pregnancies. Approximately 65 percent of identical twin pregnancies are monochorionic (one chorion). Keep reading for a deeper explanation, where well define all those words. Twins who share the same amniotic sac, a condition that occurs in less than 1 percent of all U.S. twin pregnancies, face serious risks including cord entanglement, which can . PMC Learn how twin types are defined, including the affect of fraternal or identical twins and risks of a, You've probably heard of identical or fraternal twins, but what are mo/mo twins? Monoamniotic (MA) twin pregnancies are at high risk of a range of severe complications, including increased risk of miscarriage, 1, 2 fetal malformations, 2-5 intrauterine or neonatal death 2, 4-6 and mortality rates as high as 70%. Identical (monozygotic) twins develop from a single egg-sperm combination that splits into two. Monochorionic diamniotic twins: What do I tell the prospective parents? A week after FOIA Britney Alba, from Alabama, spent 50 days in the hospital with her husband traveling between Tuscaloosa and Birmingham, so they could spend time together and with their boys. Placenta accreta spectrum among women with twin gestations. MoMo twins face increased risks including, stillbirth . Another potential circulatory problem monochorionic twins can face is twin reversed arterial perfusion (TRAP) sequence. Mono mono twins can be affected by amniotic fluid levels that are either too low (oligohydramnios) or too high (polyhydramnios). High-resolution Doppler Ultrasound imaging, which is a non-invasive test, will help assess the growth of the babies, and identify potential cord problems. Miscarrying a twin later in pregnancy is much rarer. Monochorionic twin pregnancies face higher risks because of the shared circulation. Usually, MoMo twins are delivered after 32 weeks, and steroids are administered to help their lung development after birth. 2012;36(3):195-200. doi:10.1053/j.semperi.2012.02.004. They also have a placenta to provide blood flow and nutrients during pregnancy. One of the increased risks of a twin pregnancy is the miscarriage of one twin, called vanishing twin syndrome. (2005). Beyond identical and fraternal, there's a rare third type. should not be construed as a substitute for advice from a medical professional or health care provider. J Perinatol. The number of twins has doubled and the rate of twin births has risen from 18.9 to 33.2 per 1, 000 births in the United States. Cord entanglement and compression are usually slow processes, so parents and medical caregivers have time to make decisions. Prefumo F, Fichera A, Pagani G, Marella D, Valcamonico A, Frusca T. The natural history of monoamniotic twin pregnancies: a case series and systematic review of the literature. She then gave birth to Lydia and Lynlee, who are monoamniotic-monochorionic twins, also known as "MoMo" twins - meaning they shared the same placenta and amitotic sac in the womb. The rare pregnancy is high-risk and has an occurrence of only 1 in 35,000 to 1 in 60,000 pregnancies in the US. I knew there was a risk attached with these types of twins, but I also had risks with my son George 4 and although I . If an abdominal ultrasound isnt accurate enough, your doctor may request a transvaginal ultrasound. Last medically reviewed on March 15, 2021. You are also at risk as a mother carrying monoamniotic twins. Monoamniotic twins develop when an embryo does not split until after formation of the amniotic sac,[1] at about 913 days after fertilization. While MoMo twins carry a higher risk of complications, such as miscarriage, stillbirth, fetal anomalies than identical twins, but also have a risk of cord entanglement. After being admitted to the High-Risk Obstetrics Unit at the University of Alabama at Birmingham (UAB) at 25 weeks pregnant, Alba stayed there for over 50 days before giving birth via caesarean section at 32 weeks. "Concern set in. Semin Perinatol. Monoamniotic Twins. 3. Children's Hospital of Wisconsin. Pasquini L, Wimalasundera RC, Fichera A, Barigye O, Chappell L, Fisk NM. As twins share the amniotic sac, there is a chance that one might press against the others umbilical cord while making internal movements. Britney spent around 50 days in the hospital to avoid any complications during the pregnancy. MoMo twins are known to share the same placenta and amitotic sac in the womb. In early pregnancy and up to 24 weeks, monochorionic twins have a low survival rate of 50%. Twin gestation and neurodevelopmental outcome in extremely low birth weight infants. By Pamela Prindle Fierro . The breakdown of the three potential types of twins based on various combinations of chorions and amnions is: Mono/di twins occur in about 1 in 3 instances of spontaneous twins, and a mono/di pregnancy will be diagnosed by an ultrasound. This means that we may include adverts from us and third parties based on our knowledge of you. and transmitted securely. Twin-to-twin transfusion syndrome affected three sets of twins. Recently we found out that our sweet momo twins did not have heartbeats at 10 weeks. Your doctor monitors you very closely once your pregnancy is diagnosed as monoamniotic. Can twins skip a generation? If you are dealing with MoMo multiples, consult a perinatologist rather than your regular obstetrician. 2023 Dotdash Media, Inc. All rights reserved, Verywell Family uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Britney and Frankie Alba have gone from a family of two to a family of six in just over two years, with Britney discovering she was pregnant again just six months after giving birth. If diagnosed with MoMo twins, the pregnancy can even be a risky one. This phenomenon is called Vanishing Twin Syndrome. This means that the twins are very close to each other during gestation, and there is a higher risk of complications. One small study found that vaginal delivery of mono mono twins was safe, but it involved only 29 births. The tired parents of two sets of twins born six months apart said some nights leave them wanting to 'pull their hair out'. At this point, your doctor will begin to look for whether there are two amniotic sacs. 2010 Mar;40(3):353-7. doi: 10.1007/s00247-009-1445-9. Miller HE, et al. This means that we may include adverts from us and third parties based on our knowledge of you. The rare. We love it, we love the time with our family, and we cherish every moment.". But it was like a laughing-and-crying-at-the-same-time moment. Fetal death, usually of both twins, occurs in 70% of cases (50% at <20 weeks' gestation, 15% at 20-32 weeks and 5% at 32 weeks). This pregnancy-friendly spin on traditional chili is packed with the nutrients your body needs when you're expecting. Usually, the twins are delivered by Cesarean section after 34 weeks in the womb. In a careful systematic review, where there was comparative data, the odds of MC co-twin death were six times higher than DC twins following a single in utero twin death: OR 6.04 (95 per cent CI 1.84-19.87). On this Wikipedia the language links are at the top of the page across from the article title. Also Read: Hyderabad Man Chops Friends Private Parts, Heart For Texting Girlfriend, Surrenders at Police Station. They only happen in about 1% of monozygotic (identical twins) pregnancies. Britney Alba delivered the girls by C-section and following time in the NICU, the girls are now home with their mom, dad and brothers, reports Fox19. Bartels E, Schulz AC, Mora NW, Pineda-Alvarez DE, Wijers CHW, Marcelis CM, Stressig R, Ritgen J, Schmiedeke E, Mattheisen M, Draaken M, Hoffmann P, Hilger AC, Dworschak GC, Baudisch F, Ludwig M, Bagci S, Mller A, Gembruch U, Geipel A, Berg C, Bartmann P, Nthen MM, van Rooij IALM, Solomon BD, Reutter HM. In my case, though, my pregnancy hormone continued to rise, but at a slow, unhealthy rate (HCG levels should double every 48 hours, but mine would raise only a few points every blood draw). We realized it wasnt just another set of twins, but a high-risk pregnancy, Britney said during an interview with Fox19. sharing sensitive information, make sure youre on a federal Thank you, {{form.email}}, for signing up. And then when it actually happened and we were all home, it was surreal. Dont worry if you keep reading below, well help it all make sense. Before Miscarrying one twin and carrying the other baby to term is possible. Abstract Background: Monochorionic monoamniotic twins (MoMo) occur in one of 10,000 pregnancies. Or by navigating to the user icon in the top right. So I check and can't fin. To report our experience with 36 sets of MoMo twins (1990 to 2005) and to provide updated information for counseling. A story to share? Theyll start to determine whether the amniotic fluid seems to be evenly dispersed between the two babies.