I just had a baby last month and I completely quit vaping for the pregnancy. It's not just the nicotine I was worried about. While I know that PG and VG are FDA approved and are found in lots of health, beauty and food items, the effects of vaping them have not been established. Believe me I am not anti-vaping, because I am already back to it after giving birth. But, I really don't think that pregnant women should vape, because there are not any studies of the actual effects of vaping PG and VG on adults, let alone an unborn baby. Then again, this is coming from someone who quit caffeine and did nit even take a tylenol while pregnant either. Just my 2 cents.