I️ need help.

Okay, so two Saturday’s age (October 28th) I️ lost my virginity. It wasn’t expected and like its a long one night stand kind of story, but that’s not the point. Well, neither he or I️ like, there if you know what I️ mean so he didn’t finish, but he didn’t use a condom. It was after my fertile period but before my next period by about two weeks. I️ was supposed to start on Thursday, and normally my period is either one or two days early, or a day late and my period isn’t here yet. I️ barely have any pms symptoms but I️ feel kind of nauseous all the time. I’ve done research and the probability of me getting pregnant in the time of my cycle that I️ had isn’t very likely, but I’m super scared. When can I️ take the test? Now since I️m late or should I️ wait another week? I’m so confused and I️ don’t know what to do. Please help me!