I have vaped since before I got pregnant. I have worked in the vape industry for 2 and a half years. All the studies I have read coming from a med student I would never put anything in my body that would harm my daughter. So no it does not hurt your baby the main two ingredients are vg and pg. I understand it's a new topic but vaping is not harmful to a baby.
I don't know if enough has been studied about it. It is unregulated so it's hard to tell.
I'd say in moderation as long as it's nicotine free juice
Tobacco is never good for anyone. Nicotine is awful. Weed is still yet to be determined, not enough tests, but they say smoke is bad, but no one has tested lotions and other methods...
propylene glycol an vegetable glycerin. Vg is where you get the flavor