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, Women who vape are more likely to have low birthweight babies, study shows UCLA E cigarettes Beat Patches in Reducing Low Birthweight Risk Respiratory Therapy Smoking, vaping & pregnancy: in pictures Raising Children Network