“How likely is it one absorbs the other?” I ask through sobs. I’m 10 weeks pregnant and have just been informed by an ultrasound tech that I’m carrying identical twins. I’m searching for an eject ...

Twins—smaller at birth, on average, than singletons—start out smaller in pregnancy than was previously known, according to a study by researchers at the National Institutes of Health (NIH). The ...

Mono-mono twins are an incredibly rare type of identical twins who share both a placenta and an amniotic sac. While this makes for a high-risk pregnancy, advances in monitoring and treatment have ...