Miscarriage or was I even pregnant?! Confused

Period came July 17 , normal period lasted 5 days. Had a feeling I’d get pregnant right after. Started spotting on Aug 8 that turned into a little heavier bleeding which lasted total of 2.5 days and that was that. Took several tests. One slightly positive and rest were negative. Had every pregnancy symptom imaginable, you name it! I just sensed I was pregnant. Period was late by about 10 days. Next expected period was due Aug 17. I would have been barely 6 weeks pregnant but on Aug 28th Before I could get to the doc to confirm pregnancy, started spotting then full on period like bleeding and cramping and diarrhea which made me believe I either had an early miscarriage or I was never pregnant and just have an off period.. still confused. After I started bleeding I no longer “ felt “ pregnant. Btw we weren’t “ trying “.

What do you think this was??