Failed drug screen

For THC, I had surgery for an ectopic and didn't like the way percocet made me feel so I smoked instead but fell pregnant despite using condoms a couple weeks after surgery. I barely failed it, but what happens now? I stopped when I found out I was pregnant, it was just a better way for me to deal with the pain than opiates. I feel so awful.

The drug test was part of my first trimester screening. All STDs, drugs, etc. I was 10ish weeks. I am a little chunky, and I know it's stored in fat. I was smoking pretty heavily, multple times a day for a f ew weeks. I'm 14 weeks now and I haven't smoked since I was 5 weeks when I found out so there's no way I'd still fail it. I'm just scared of CPS now