A pregnant woman smokes a vape while sitting on the couch. Close up of the abdomen Stock Photo Alamy 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 Pregnant women to be given free vapes Pregnant Vapers More Likely to Have Low birthweight Infants Respiratory Therapy Why women vape during pregnancy & postpartum: conversations starters for your practice SURE