Super worried

Hi ladies, I'm 29 weeks pregnant. I have never smoked in my life except for maybe a week when I had a vape (no nicotine). I found out I was pregnant after I stopped with the vape. I recently are a brownie that had weed in it. I did not realize it at the time. I'm super worried if my baby is okay. Also, I have an appt in 2 weeks. Not this Monday but next Monday, will they see it in my urine?? I don't want them thinking I'm a druggy. I'm absolutely not and never want to.