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 ...

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 ...

Women who give birth to twins are twice as likely to be readmitted to the hospital for heart disease within a year compared to mothers who birth one infant, a new study shows. The risk is even higher ...