The oxygen deprivation is really bad. Having your child taken by CPS for using after 20 weeks is also bad. If you are going to use, eat it in brownies and low doses.
Idk if its really bad but I wouldn't want to risk babys health not only that but the possibility of it showing on any blood work and baby being taken away
I would avoid it my older sister smoked it thru her pregnancy and her girl suffered from seizures and docters do not know why its very scary she has done it since baby she is now a teenager and has not seizured in a year or so but even my sister said she wishes she wouldn't have smoked so much during her pregnancy I think just for the sake of the baby and all the unknown during pregnancy best to stay away from it ;)
I am no doctor, but I really think we should avoid anything that might harm our baby. I am a beer fan and Ill quit it for the next year or so, till I stop breastfeeding..