Smoking, Pregnancy and Fertility ASH Vaping Works Better Than Nicotine Patches for Pregnant Smokers Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn Smoking and vaping during pregnancy increase the risk of preterm birth support is available to help you quit. Smoking during pregnancy is the biggest modifiable risk factor for preterm birth. Quitting Vaping during Pregnancy: Not Just a Bunch of Smoke MotherToBaby 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