Smoking during pregnancy March of Dimes Know the facts about vaping while you're pregnant Nicotine exposure can increase the risk of low birthweight or premature birth, harm brain and lung development, and increase risk of We've updated our vaping during pregnancy resource. Created in partnership with ASH, the Royal College of Midwives and Sands, the infographic has important guidance around vapes and pregnancy. The resource is now Vape residue may harm unborn babies, mouse study suggests Second hand vape smoke linked to more asthma symptoms in kids