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, ...

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 ...

Identifying issues early allows parents and doctors to prepare for medical care after birth. And in some cases, doctors can ...

A viral TikTok video showcases the surprising effects of a twin pressing against their sibling's jaw in the womb, and the child's mom told Newsweek of her concerns. The clip, shared by Taylor Deal, 29 ...

In 2021, Deonna Fletcher, who goes by “Dee,” gave birth to three girls. But during Fletcher's first ultrasound, there was just one baby. A couple of weeks later, a follow-up ultrasound revealed the ...

Just days before their wedding, Bernard Clark thought he was about to lose the love of his life, Shannon Hackett, in the ...