This article originally appeared on health. In the middle of all the headline-grabbing political news, Beyoncé stole everyone’s attention by announcing she’s pregnant—with twins! The performer posted ...

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 split early in development, or fraternal, ...

Carrying a twin pregnancy is not an uncommon event. It occurs when the uterus carries two fetuses simultaneously rather than one. Having twins runs in some families and age also appears to be a ...

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 ...

New reproductive technologies have yielded a vast array of novel variations on the two conventional twin types—identical and fraternal—as well as some curious twin-like sibships. When a Canadian ...

There’s something fascinating about twins. The idea of two babies growing together often captures people’s curiosity. Many couples even wonder if there’s a way to plan or boost their chances of having ...

Recently, a strange case of twin pregnancy has appeared in various media. What, at first glance, would be a common birth in which two babies were born, soon became an exceptional and unusual case: ...

New reproductive technologies have yielded a vast array of novel variations on the two conventional twin types—identical and fraternal—as well as some curious twin-like sibships. When a Canadian ...