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, 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, Vaping and Smoking While Pregnant: Risks, Effects and More Vaping may be an effective way to quit smoking during pregnancy New Scientist Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn Is vaping zero nicotine while pregnant safe? Netmums