Cigarette smoking negatively affects pregnancy in many different ways. The risks appear to be dose dependent. Women who smoke more than 10 to 20 cigarettes a day have almost twice the risk of miscarriage as nonsmokers [19, 20] . Prenatal smoking has been associated with 30% of small-for-gestational-age infants, 10% of preterm infants, and 5% of infant deaths. Cigarette smoking before conception may cause reduced fertility and conception delay among women. Maternal cigarette smoking during pregnancy increases the risk for pregnancy complications (., placental previa, placental abruption, and premature rupture of the membrane) and poor pregnancy outcomes (., preterm delivery, restricted fetal growth, and sudden infant death syndrome [SIDS]) [21; 22]. Between 2000 and 2004, an estimated 776 infants died annually from causes attributed to maternal smoking during pregnancy .