Question

SOS: So I need y'all help. It's been almost two weeks since I last had sex. We didn't use a condom the whole time. It was rough because i wasn't wet enough so it hurt. Well I spotted the next day. I ended my period the day before and then we had sex. But since then I've been on and off spotting bad blood. I thought I was bleeding bc of the friction and not having sex in a while. But after researching, it says I can spot blood the first 7-10 days after conception. Does anyone know anything? I'm worrying myself to death.