While vaping is not risk free, it is less harmful than tobacco Our World in Data Women who vape are more likely to have low birthweight babies, study shows UCLA Light smoking' before pregnancy can cause major health problems 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 Is Vaping Worse Than Smoking? St. Vincent's Medical Center Vaping During Pregnancy: Nicotine, Cannabis, CBD