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, Vaping while pregnant is safe for both babies and mothers, rule experts amid growing fears of dangers of e cigs Daily Mail Online Electronic cigarettes and vaping Tommy's Can you vape while pregnant?