Period sex??

This guy l been talking to off and on for 4 years came over today and we had unprotected sex. I was very recently on my period like monday morning it stopped. I was bleeding after intercourse. I don’t masterbate and l haven’t been with him Since July 24th. It stung a bit when l peed afterwards does this mean l ripped during intercourse? I dont think its my period. I hope l dont sound like a idiot. . If anyone has experienced this please let me know how you handled/cured it. Thanks.