Nicotine products in any form, whether from cigarettes, vaping or chewing tobacco, pass into a mother's bloodstream and through the placenta to the growing baby. Quitting nicotine is hard for many people, Tobacco Smoke, Vaping, and Asthma AAFA.org Vaping during pregnancy Tommy's Frontiers Publishing Partnerships Prenatal nicotine exposure during pregnancy results in adverse neurodevelopmental alterations and neurobehavioral deficits Vape residue may harm unborn babies, mouse study suggests Should I Be Concerned About Secondhand Vaping?