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article imageWoman in US pregnant with two babies who are not twins

By Lynn Curwin     Jul 20, 2010 in Health
Both Angie Cromar and her doctor were shocked when she had her first ultrasound. The test showed two fetuses, at different stages or development.
The 34-year-old woman was born with a rare condition called didelphys, meaning she has two uteruses and a double cervix. Even among women born with this unusual condition, carrying two babies conceived at different times is extremely rare. The EmaxHealth web site says researchers believe this has only happened about 100 times in modern medical history.
When Cromar’s ultrasound was done it was found that one fetus was about five weeks and four days along, while the other was six weeks and one day. One is a girl and the other is a boy. A video of her ultrasound can be seen on
Cromar, who is a labour and delivery nurse, realizes that the double pregnancy increases the risk of preterm labour and low birth weights.
She already has two children, both born from single fetus pregnancies.
The Mayo Clinic explains that the uterus starts out as two small tubes. The tubes usually join to create one larger organ called the uterus. Sometimes the tubes don't join completely, and each one develops into a separate cavity. This condition is called double uterus (uterus didelphys).
The clinic’s web site says, “According to one estimate, uterine abnormalities occur in as many as four per cent of women who have normal pregnancies, and of these women, about five per cent have a double uterus. The percentage of women with a double uterus is likely higher in women with a history of miscarriage or premature birth.”
Treatment is not needed unless the condition causes problems such as pelvic pain or repeated miscarriages.
In 2006, Hannah Kersey, a woman in the UK with didelphys, gave birth to three children at once. A pair of identical twin girls was delivered from one womb and a single baby girl from the other womb. The children were born seven weeks early by Caesarean, at Southmead Hospital in Bristol. It is believed to be the only case of triplets being delivered from two wombs.
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