Uhhhhh

Daisia
My boyfriend and I were at the pool earlier and we went in a corner and basically touched each other everywhere (and we had our first bj☺️) but after a while, and he realizes what he did wrong and he promised to do better next time, he tried to enter in my butt and accidentally forced it and it hurt like crazy I couldn't walk or swim after that (and it still hurts even right now). My question is: is it normal to see blood? And how long does the pain last?