Vaping while Pregnant or Nursing Do you know that vaping or E cigarettes are hazardous during pregnancy as it can affect fetal development. If you are pregnant or trying to become pregnant, you should be aware about the British Journal of Midwifery Electronic cigarettes for smoking cessation in pregnancy: a nationwide mixed methods study British Journal of Midwifery Nicotine products in any form, whether from cigarettes, vaping or chewing tobacco, pass into a mother's bloodstream and through the placenta to the growing baby. Quitting nicotine is hard for many people,