Rh disease RH factor is a protein on some people's red blood cells. Learn how RH disease affects your baby and how to prevent it.
Bacterial vaginosis and pregnancy Bacterial vaginosis (BV) is a common infection caused by a certain bacteria in the vagina. Learn about the causes and symptoms of BV.
Marijuana and pregnancy Using marijuana during pregnancy may cause harm to your baby. Learn about the effects of marijuana and how to seek help to quit.