Accidental Anal -Updated

Ok so this is embarrassing so I’m posting anonymously and probably won’t respond to replies so I can keep my anonymity. But last night I hooked up with my fuck buddy and he slipped out and rammed his dick into my ass full force and full speed on two separate occasions. It hurt so badly both times that I fell off the bed. After the first time I told him to be super careful and after the second time I just got dressed and left. I couldn’t sleep on my back all night because it hurt so I slept on my stomach and sides but every time my butt accidentally clenches or I bend a certain way or anything, it hurts really badly.

I guess what I’m asking is how long can I expect this pain to last and is there anything I can do to ease the pain? I have a lecture I have to go to tomorrow and I really don’t want to miss it because I can’t sit down or explain to my professor why I need to stand lol

Any advice is appreciated, thanks in advance!

Update: First off, thank you for all your replies and advice. I thought about what everyone said and I did cut off communication with him immediately once you all brought it to my attention that it might not have been an accident.

I know I posted this a while ago and I’m not expecting any responses to this update but I wanted to get this off my chest and rant a little and this seemed like an okay place to do that. A couple days ago, I found out that not only was it not an accident, he’s been laughing about it with his friends and bragging about it. He was going to yell “[my name] loves anal!” on a public bus to call me out in front of all my friends. The only reason I even know this is because a friend of mine overheard his conversation with his friends and told me.

The fact that he put me in so much pain and didn’t even give me the option to decide whether or not I wanted to do something like that is pretty upsetting, but the laughing about it with his friends is really adding insult to injury. He lives right across the street from me, and I see him and his friends outside almost every day, and it sucks to know that they all think something about me that isn’t true.

Sorry for the novel, just wanted to rant. Thanks again for all your comments, it meant that I knew to stop talking to him before all this happened at least!