Penn Badgley and Domino Kirke’s family is growing by two — and they “are stunned.” The singer announced in an Instagram post ...

Medically reviewed by Monique Rainford, MD A twin pregnancy is when there are two fetuses in the uterus at the same time. Twins can be identical, meaning they developed when a single fertilized egg ...

not only because of its large and growing population, but also because of its high rate of twin births. Multiple pregnancies are associated with higher risks during and after pregnancy. Mothers are ...