Healthy eating habits and an active lifestyle can help the pregnancy process. But as there are things to do, there are items to avoid. Here are the "don'ts" before delivering:

Don't smoke. It puts both mother and baby at risk for pregnancy complications, Sudden Infant Death Syndrome (SIDS), stillbirth, premature birth and low-birth weight infants.

Don't drink alcohol. It can put your child at risk for health issues within the fetal alcohol spectrum disorder that can affect him or her for a lifetime.

Don't eat certain types of fish. Dr. Debra Kirkpatrick, the vice chair for clinical affairs for the Department of Obstetrics and Gynecology at the Indiana University School of Medicine in Indianapolis, Ind., says a pregnant woman should avoid fish that are high in mercury such as swordfish and shark. With more common types of fish, like canned light tuna, try to limit it to two meals a week, she said.

Don't eat certain soft cheeses. It is important for a woman to avoid certain soft cheeses like brie, feta and Camembert, Alice Bailes, co-director of Birthcare and Women’s Health in Alexandria, Va., says. According to the Centers for Disease Control, these types of cheeses can carry the foodborne disease listeriosis which can cause miscarriages and stillbirths in pregnant women.

Don't drink unpasteurized milk. It also can contain listeriosis, according to the CDC.