Congenital heart defects and critical CHDs Congenital heart defects are the most common types of birth defects. Learn about newborn screening for heart defects and how to prevent them.
Cystic fibrosis and pregnancy Cystic fibrosis (CF) is a genetic condition that affects breathing and digestion. You can get a CF carrier screening test to find out if your baby has CF, too.
Smoking during pregnancy Smoking during pregnancy can cause problems like premature birth and birth defects. If you need help to quit smoking, tell your health care provider.