Please help what to do

Ok so I was drunk and I had sex with my boyfriend unprotected . And I never do it unprotected but obviously it happen cus I was drunk , he did not but in me or at all. But my ovulation day was suppose to be today . So if I get a plan b ... should I be okay? Or I’m pregnant . I’m so scared because i wasn’t trying to do that but when I was drunk , I wasn’t thinking at all😔I’m so ashamed and embarrassed but it happened so idk what to do. Had sex today or last night some time . Can’t remember