Confused

Emily

So I wasn't sure where to put this but I'm on birth control and I really screwed up my second pack I was supposed to get my period this week and I did just not the usual 4 days and not as heavy. I got it Tuesday and it was brown which is kinda unusual but it was it's normal heaviness ig. Then Wednesday came and I had only used like 1-2 tampons I think then Thursday came and nothing. I did have sex Thursday of last week(unprotected) and idk if that was my period or what that was🤔