‼️‼️ TMI ‼️‼️ BLEEDING AFTER SEX

I just had my period like 3 weeks ago and I'm on a 90 day birth control pill, so I know this isn't related to my period.

Could it be from having sex too much? We had sex 3 times on august 2nd and once around 3am on the 4th. He's pretty fucking big.

No blood currently coming out for about 24 hours, my lower stomach tends to hurt after sex with him.

1st pic is the pic he sent me asking "were you bleeding this morning?"

this was my underwear last night:

then this was my underwear today..

is it maybe just spotting? then again i haven't had spotting for a long time while i've been on the SAME birth control for 8 years...