Bleeding during sex

I’m not sure if anyone out there has experienced this but I think I previously got a sex injury that caused a small tear/cut right at the bottom of my vaginal opening. When the injury occurred I experienced immense pain when peeing for days. NOT inside my body but only pain when my pee got to the outside of my vagina and hit that area where I think there was some sort of injury. I had sex a few nights ago and it was still tender after sex. We also discovered I bled during the intercourse. It couldn’t have been from that torn area but it definitely came from inside, as if I was on my period. I did not bleed after sex, only during. It was ok the sheets and the condom as if i had started my period but that is a couple weeks away. I cleaned it off and no more blood came out. I have NO IDEA what to make of this. Should I be worried about this tender area at the opening of my vagina? And why would I bleed like that during sex? This is the second time it’s happened in the past couple months.