Do I need the pill?

So I had sex for the first time yesterday and it all went well but when I got home and went to the bathroom I realized he came in my ass. I realized that after I had already gone back and forth with tp down there(I know I shouldn’t!) but I’m not sure if it got in my 😽. He had a condom on when he was in my 😽 but took it off when he went to my ass. I’m not sure if I should take the pill to be safe or if I’m just panicking (oh and I start ovulating in about 2 days). Help!!