Study shows vaping nicotine while pregnant may impact fetal development Many people think vaping is a safer option during pregnancy. But both smoking and vaping can affect a baby's oxygen, growth, and development. Here are some risks every expecting parent should know.. Smoking or vaping during pregnancy can create risks for you and your baby. Quitting is the best thing you can do for you, your partner and your baby's health. If you Women who vape are more likely to have low birthweight babies, study shows UCLA