Example of pot's negative effect on a pregnancy?

grateful_jones

I'm new here and interested in learning how pot (marijuana or cannabis) can help or harm a pregnancy (mother or child). I've read a lot of studies with inconclusive and conflicting information, but is there an example, story or case of the negative effects where someone was clearly harmed? Maybe there's an article, blog or story I'm missing...

Thank you so much in advance for your insight. 

NYTino24

@grateful_jones No one here will tell you it's okay, if that's what you're looking for. You will be drug tested at birth and so will your baby. Here is some reading material for you (in case you don't know how Google works).
https://scholar.google.com/scholar?q=nih+marijuana+pregnancy&hl=en&as_sdt=0&as_vis=1&oi=scholart&sa=X&ved=0ahUKEwjwlvXatMPTAhXBNSYKHThaAagQgQMIGjAA