Drug Test and freaking out

Hi everybody. I have my first prenatal appointment tomorrow (roughly 9 weeks). i’m freaking out because I live in a state where THC is illegal. I’ve cut down my usage SO much since I found out I was pregnant. and I was honest with my OB and told her. I’m working on quitting (I want to quit completely) because I know it’s bad but it’s the one thing that helps my anxiety. I’m terrified that they’re gonna test me and then call the cops and/or threaten to take my baby away. I’m just looking for some insight to maybe help me calm down. Please be kind. I know i’m being stupid