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.
Down syndrome Down syndrome affects your baby's learning and development, and presents some physical problems. What causes Down syndrome and how can you test for it?
Signs and symptoms of preterm labor Labor before 37 weeks may cause severe problems for your baby. Know the signs of preterm labor and what to do if you go into labor early.