Exposure to vaping in utero can change baby's face, skull: study Is It Safe To Vape If You're Pregnant? University Hospitals 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, Study shows vaping nicotine while pregnant may impact fetal development Vaping and pregnancy Know the facts Vaping is not harmless