Five things to know about youth nicotine use Stanford Report 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, Secondhand Smoke Is a Risk for Pregnant and Breastfeeding Moms The Wellness Coalition Do electronic cigarettes create thirdhand chemical residue? Thirdhand Smoke Resource Center Second Hand Vape Smoke Pregnancy Vaping During Pregnancy: Are e Cigarettes Safe for Baby?