Verywell Health on MSN

What to Know About Twin Pregnancy

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 ...
Being pregnant with more than one baby is pretty special! And odds are everything will go smoothly for you and your little ones. But it's important to know that carrying twins or multiples ...