Help me y’all

Natalia

So I’ve been on the pill for almost 2ish years and since I started taking it my period is very very regular. Like it’s always on time and never really differs or anything like that. So I got my period on 8.7 and finished on like 8.13. My boyfriend and I had pretty rough sex on 8.17 and since 8.19 I’ve been like having this brownish kinda looking and smelling discharge and some cramps and this has never happened to me before. I took a pregnancy test and it was negative and I take my bc regularly. I also don’t start my next period till 9.4 so I don’t know what’s happening. Idk if its like weird after period discharge but it’s a week late or if my bf messed some stuff up inside of me lol. Just someone help my dumb biss self out.