Vaping During Pregnancy: Nicotine, Cannabis, CBD Light smoking' before pregnancy can cause major health problems Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn SA Health Smoking and vaping during pregnancy can be harmful to your unborn baby. The chemicals in cigarettes and vapes can damage your baby's Instagram 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, Flavored e cigarettes modulate embryo development, fetal growth, and potentiate early fetal demise without nicotine Communications Medicine