Smoking and Tobacco Use Is vaping better than nicotine patches during pregnancy? Can You Smoke A Vape While Pregnant Vaping 0 Nicotine While Pregnant 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,