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.
Bleeding and spotting from the vagina during pregnancy Bleeding or spotting during pregnancy are common, but you should contact your health care provider to make sure everything's okay.
Folic acid Folic acid is vitamin B9, which can help prevent neural tube defects in your baby. Learn which supplements and foods are good sources of folic acid.