Help. Pleaseee!

Adabby

I just had sex and we used protection but at some point the condom came off. When we finished he was cleaning up and I went pee and he was like hey idk where that went... and I looked at him and he looked at me we both knew there was only one other place so I checked and it was way up in there. I got it out and he did finish inside me. It was all over and I'm not ovulating but has anyone had this happen before? I'm kinda nervous. If this apps says I'm at a low chance of pregnancy could that happening make it higher? Anyone got advice?