Zika virus and pregnancy Zika infection during pregnancy can cause a birth defect called microcephaly and other brain problems. Learn how to protect yourself from Zika.
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.
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.
Ectopic pregnancy Ectopic pregnancy is when an embryo develops outside of the uterus and always ends in pregnancy loss. Learn about the symptoms, diagnosis and treatment.