Study uncovers shift from cigarettes to vapes among pregnant teens with mixed impact on newborns' health Smoking or vaping during pregnancy can create risks for you and your baby. Quitting is the best thing you can do for you, your partner and your baby's health. If you Know the facts about vaping while you're pregnant Nicotine exposure can increase the risk of low birthweight or premature birth, harm brain and lung development, and increase risk of A Pregnant Woman Smokes a Vape while Sitting on the Couch. Close up of the Abdomen. Stock Photo Image of nicotine, critical: 304035782