Help with research paper (pregnacy related topic)

***UPDATE*** I really appreciate all the posts! my professor said that I can write my paper from a ethical/moral standpoint since there isn’t really any clinical data. Will update when I get my grade back.

I know this is a hot button topic but that’s exactly why I chose it. I’m looking for info on marijuana use during pregnancy I keep finding a lot of opinion related articles. Everything I’ve read states to be wary of it during pregnancy but then Ive seen a lot of mothers who said they’ve done it and their baby was fine?!? Was wondering if any of you ladies found reputable information about this topic that I might have missed. Me and my grade thanks you in advance