The risks of secondhand smoke Tommy's Tobacco Smoke, Vaping, and Asthma AAFA.org 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, Flyer: Vaping During and After Pregnancy Central District Health Dangers of Smoking During Pregnancy Explained by Expert Midwife Exposure to Thirdhand Smoke Harms the Health of Pregnant Women Thirdhand Smoke Resource Center