I need a response quickly...😢

So I got my period the 1st of July. On the 14th we had sex (condom on) and he never finished. On the 19th, the heat turned up and we were rubbing parts for a bit (no protection), he also didn't finish. It's August 6th, no period but I do have a lot of back pain, mild cramping, as well as my cervix being firm and on the medium/low side. Do you girls think there's a possibility for pregnancy? Or should I not worry? And also, if what I'm feeling is a sign of AF coming. Let me know! 😕