fast reply please xoxo

Hey ladies, so I need some help. I'm in so much pain downstairs. Yesterday my boyfriend had fingered me and it was so uncomfortable afterwards. Well today all of the sudden I'm in the mood and I totally forget about the pain. Then when we just got done actually having sex, it burns so bad, so sore, and I can barely walk. I can't even pee. Anyone know what it is, what I can do, and any treatment? Please help me.