Marfan syndrome Marfan syndrome is a birth defect that affects the body's connective tissue. Learn the signs and symptoms of Marfan syndrome and how it's treated.
Pregnancy after age 35 If you get pregnant after 35, you may need prenatal tests to check for birth defects. Learn about pregnancy after 35.
Weight gain during pregnancy Gaining the right amount of weight supports your baby's development, but too much can be harmful. How can you track your weight gain during pregnancy?