Can You Smoke A Vape While Pregnant Breastfeeding moms using tobacco or e cigarettes can pass harmful chemicals to their babies. Dont smoke or vape to ensure the healthiest start for your baby. Crucial Aspects to Consider Before Vaping by Danielle Siarri MSN, RN Medium E cigarette use during pregnancy and its association with adverse birth outcomes in the US ScienceDirect 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 Flavored e cigarettes modulate embryo development, fetal growth, and potentiate early fetal demise without nicotine Communications Medicine