Pregnant parents told vaping doesn't harm unborn babies The Independent 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 Vaping more effective than patches for pregnant women, study finds Dr Colin Mendelsohn Flavored e cigarettes modulate embryo development, fetal growth, and potentiate early fetal demise without nicotine Communications Medicine