HELP NEED ADVICE ASAP PREGNANT OR JUST FROM AN STI

I’ve been having pregnancy symptoms for about a week. Boobs are really sensitive and tender lots of blue veins, I’m hungry every 4-5 hours and don’t want anything but carbs and fruit. I’ve been super tired been taking naps in the day, and have been getting occasional nausea and acid reflux. Last Friday (6th) I went to the doctor to get an annual check up, they found out I had Chlamydia and gave me meds. I took those and on Sunday (8th) I started spotting Brown it looked more like discharge I thought it could be implantation bleeding i was 10dpo spotting stopped on Tuesday (10th). My boyfriend and I had unprotected sex Tuesday night late so basically Wednesday (11th) (so stupid since I hadn’t been on the meds for the directed amount of time and he hadn’t gotten checked) anyways that night I had a lot of bleeding it subsided within an hour or so but since then I’ve been spotting or like a light period almost although I feel like it’s not period blood it’s darker and more running if that makes sense no clots and my period isn’t due until tomorrow (13th). I’m not sure if the bleeding is from A. My cervix being sensitive because I could be pregnant. B. I still have Chlamydia and that’s causing it. C. My period just came early. Calling my doctor tomorrow to see if I should come in.