Is it okay if I smoke a little weed while I'm pregnant? Part 2?

okay I got a lot of negative responses from my first question and I just want to clarify a few things. My boyfriend Terrell loves me and he's not trying to put my baby in any danger. In fact I know a girl named lisa who smoked a little weed while she was pregnant and her baby was just fine. She even drank too. It's not like I do it all the time. My ex just bothers me about so much because he wants to bother me and doesn't want to see me happy. He already has a girlfriend so he doesn't need to bother me all day with his ''you shouldn't be smokin that stuff''blah blah blah. He needs to stop actin like he cares cause I know he's fake. As soon as I got with Terrel that's when he wanted to give a damn . If Lisa had a healthy baby I should too. Hell I smoke even less weed than her and I don't even drink. Plus marijuana isn't even that harmful. I know yall are concerned about the baby and all but there's only a small chance that it will be affected. I only smoke like once every month.