Don't smoke or use nicotine during pregnancy or after your baby is born. Safe Sleep NC Does Vaping Cause Secondhand Smoke? Vaping may be causing irreversible harm to children's health, doctors say Vaping The Guardian Health experts say not to 'vape' around children, because the secondhand aerosol (it isn't vapor) from e cigs isn't safe for them Kentucky Health News E Cigarettes and Pregnancy Maternal Infant Health CDC Secondhand Smoke and Secondhand Vaping: Both Bad for Kids University Hospitals