period?

Reagan

so i started my period thursday feb. 4th and i usually end in about 4-5 days after that. i’m on birth control so my periods are pretty regular and consistent. but i’m still bleeding. i’m just spotting right now i only have it when i wipe. i was having a lot of sex on my period and my vagina was sore so could it just be bleeding because i had too much sex? or i could think that it was implantation bleeding but that’s just me overthinking. i take my pills perfectly and on time. sooo any ideas as to why i’m spotting still? is it normal for my period to prolong even though i’m on the pill? maybe i’m just overthinking haha i just want to see what others think of this. :)