Is Secondhand Vape Smoke Bad For Pregnancy? Experts Explain The Risks 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, Is vaping safer than smoking when you're pregnant? Experts weigh in BabyCenter Vaping During Pregnancy: Are e Cigarettes Safe for Baby? Know the facts about vaping while you're pregnant Nicotine exposure can increase the risk of low birthweight or premature birth, harm brain and lung development, and increase risk of Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals