HELP IDK WHAT TO DO!!! BLEEDING AFTER ANAL?!?!?

so a few days ago my boyfriend and I decided to try anal sex. so I lubed up and he gave it a go but when he was in it felt like my butthole ripped and it started bleeding and it was really painful. for the past few days Everytime I try to poop it hurts and after I'm done I wipe and there's fresh blood. I can't tell my mom because she doesn't know I'm sexually active and I'm afraid that something is really wrong and I just don't want it to get infected. idk what to do. is it normal to bleed after anal. I tried looking it up on Google but I couldn't find anything. PLEASE HELP