A flurry of studies published since the outbreak of the 2019 "vaping crisis" have tried to measure the health impact of e cigarettes on pregnant women and their newborn babies. And for good Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn In the United States, about 8% of all women who are pregnant smoke cigarettes, and another roughly 4% report using electronic cigarettes or vapes. To learn more about the dangers of smoking A pregnant woman smokes a vape while sitting on the couch. Close up of the abdomen Stock Photo Alamy Exposure to Vaping in Utero May Affect the Shape of a Baby's Skull