Hey, i am 15 and i got my period on a sunday the start was like orangy brown but then 2 days after it went into my normal period. what could that meen?

And then on thursday i had sex with a guy, i still had my period which was close to ending but then on the friday when it should be techiwly gone , i found a lil lump of blood it wasnt very big but yea, i woke up on saturday morning and there was a little bit of light browny drop, does that just meen my period was ending or what, i had a thought that it could just be that he did go pretty deep it was a lttle painful i was thnking it could be just he ripped another layer of my cherry , ? what do you think? Please help me ? :-)

xo.