SA Health Smoking and vaping during pregnancy can be harmful to your unborn baby. The chemicals in cigarettes and vapes can damage your baby's Instagram Animal Study Shows Harmful Effects of Secondhand Smoke Even Before Pregnancy Duke Health Vaping while pregnant could cause craniofacial birth defects, study shows Is vaping safer than smoking when you're pregnant? Experts weigh in BabyCenter 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, Why you should avoid vaping if you want a baby in future Your Fertility