Is Nicotine Free Vaping Safer? Do you know that vaping or E cigarettes are hazardous during pregnancy as it can affect fetal development. If you are pregnant or trying to become pregnant, you should be aware about the Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn 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 Vaping During Pregnancy: Nicotine, Cannabis, CBD