Smoking while pregnant

Zelle
I have a general question. No I don't do this, I was just talking to friends about it and wanted to hear others opinion. How do you all feel about smoking marijuana while pregnant? I've heard other moms that did it and had no issues. I also thought since it was popular in the 70's, I'm sure our mothers or grandmothers smoked marijuana while pregnant. What do you all think of smoking marijuana while pregnant?