Should you vape when pregnant? Does it harm your baby? MadeForMums Did you know? Smoking or vaping during pregnancy can harm both mom and baby. Increases risk of premature birth Raises chances of low birth weight Can affect brain Smoking, vaping & pregnancy: in pictures Raising Children Network Frontiers Publishing Partnerships Prenatal nicotine exposure during pregnancy results in adverse neurodevelopmental alterations and neurobehavioral deficits Vaping may be an effective way to quit smoking during pregnancy New Scientist Exposure to vaping in utero can change baby's face, skull: study