She reported pain, abdominal tightness, and constipation. On August 9, the patient called the ob-gyn’s clinic and reached the after-hours answering service. The patient claimed she was unaware of this appointment, until she received a reminder card in the mail. The patient was referred to a maternal fetal medicine specialist (MFM) for consultation in two weeks. There was no recorded disparity between the twins in terms of anatomy, heart rates, or amniotic fluid. The cervix was 2.8 cm (normal is 2.5), two sacs were seen, and one placenta seen. On July 29, at 20 weeks gestation, the patient returned and a complete sonogram was performed. This discussion was not documented.ĭuring follow-up visits on June 15 and July 13, sonograms were performed, but the findings were not documented. On May 18, the patient returned to the clinic to consult with an ob-gyn, who told the patient the sonogram indicated that the twins were monochorionic diamniotic - identical twins who shared a placenta but not an amniotic sac. The sonogram images were unclear, but showed the possibility of twins. Routine labs and sonogram were performed. If your doctor says you're having one baby, especially by the 20-week mark, you're more than likely just having one.Texas Medical Liability Trust Resource HubĪ 28-year-old pregnant woman came to an obstetrics clinic for prenatal care on April 27. While a hidden twin can happen - especially up until the 20-week anatomy scan - you typically won't have a big surprise on delivery day. Most hidden twins at the time of delivery are seen in patients who had little or no prenatal care, but there have been documented cases of women who had prenatal care and still delivered a hidden twin.” How often has Abdur-Rahman delivered a hidden twin? He says while he has never personally delivered one himself, “I did have a friend who was a hidden triplet! She was born in Poland about 50 years ago, but hey, it still happened. “With later ultrasounds showing only one baby, you can be 99.99999999% sure that there is only one.” A second twin that is hidden on an early ultrasound will likely be discovered later in pregnancy during the 20-week anatomy ultrasound,” he says.īy the 20-week ultrasound, you can mostly rest assured that any hidden twin will be found. “Hidden twins are common in mono-amniotic pregnancies, which are pregnancies in which the babies are located in the same amniotic sac. It depends on the type of pregnancy you’re having as well. “You can usually see a baby in the uterus on an ultrasound at about six weeks gestation,” explains Abdur-Rahman, “so this is the earliest that you could theoretically diagnose a twin pregnancy.” Jill Lehmann Photography/Moment/Getty Images “There really is no fool proof way to diagnose a twin pregnancy prior to having an ultrasound, though there are some potential clues like a higher than normal beta hCG (pregnancy hormone) levels.” When do you find out if you’re having twins?
Is there any way for you to know for sure you’re carrying twins, even before the ultrasound? Abdur-Rahman says not quite.
A twin hiding in an ultrasound is more common with an ultrasound done early in pregnancy, because of the baby’s - or babies’ - size.
While having a hidden twin on an ultrasound is pretty uncommon, it can happen, says Idries Abdur-Rahman, an OB-GYN. Clearly, my twin and I were not hiding, but can twins hide in ultrasounds? Is there any room for shock further down the road in your pregnancy? How do you know if you have a hidden twin in an ultrasound? Chalker said at her follow-up appointment that not only was my mom definitely pregnant, but there were two heartbeats. However, nothing prepared them for the shock when Dr. In fact, my mom was at her gynecologist's office with my dad to ask about updating her birth control. When my mom and dad found out my mom was pregnant, they were both in shock, as it was not a planned pregnancy.
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