TMI Bleeding/ Early ish period

I just had my first sexual experience July 24th and second one September 7th. My period is usually every 6 weeks as I believe I have pcos due to other symptoms. A few years ago I was on my period for over a month and had to get a blood transfusion and put on birth control. I got off birth control a few years after taking it to try to regulate my body naturally. I haven’t taken it since. My last periods were June 24-29 and August 7-12. My period just started on September 15th which is a week early from when it would usually start but my August period was early as well. This September period started off dark brown the first day and then it’s been bright red/pink everyday with some clotting in between. I’m hoping it stops soon because I don’t want to be on bc again as I gained a lot of weight, now have one smaller breast(over two cups different), and experienced other issues. Is this normal or could I possibly be pregnant?