Vagina hurts after sex?

My bf and I recently had sex for the first time together and everything felt really good in the moment, but afterwards I felt kind of sore and it was uncomfortable to walk. I also noticed some blood (which I just assumed was bc of my hymen or whatever). We used a condom and I think I was wet enough. I’m not sure why I would be experiencing pain afterwards or if that’s normal and I’ve been kind of worried about it.