Treating mildly low thyroid function during pregnancy might not be worth the trouble, according to a new study.

Despite some past concerns, a new study found that getting the Tdap vaccine during pregnancy was not tied to an increased risk for microcephaly or structural birth defects.

Children of moms who had good folate levels during pregnancy may have a lower risk for childhood obesity, a new study found.

It's a well-known fact that smoking during pregnancy can harm the baby. Now, researchers may have a clearer picture as to why that is.

Could taking birth control pills while pregnant harm a developing baby? It's unlikely, new evidence suggests.

Losing weight may need to be a priority for heavier women who are thinking about getting pregnant.

The C-section has become extremely common in the US, but new evidence suggests that this might be dangerous to women and babies in some cases.

A new test might improve the accuracy of Down syndrome diagnoses.

Since 2012, the Centers for Disease Control and Prevention (CDC) has suggested that all pregnant women receive the Tdap vaccine, even if they were vaccinated earlier in life. And new research found that Tdap was safe for both mom and baby.

Pregnant women face many choices as they prepare for the baby's arrival. And new research suggests that moms-to-be with epilepsy may have an extra decision to make about their medication.