What happens if CPS gets involved for you smoking weed while pregnant??

So I’m 10 weeks pregnant and I made the mistake of going to therapy she asked if I was still smoking weed and like a total dumbass I said yes. So she said she might have to report it to CPS and in every case I’ve seen where CPS gets involved the kids are taken away. What’s going to happen if I do get reported for smoking weed during my pregnancy?? I mean I know most likely they won’t take my baby away just by googling but what’s the actual process?? Like am I going to have to go to rehab or something??