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.
Gestational diabetes Untreated gestational diabetes can cause premature birth and stillbirth. Find out if you may be a risk for gestational diabetes.
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.