PLEASE ADVICE NEEDED !!!! 🤕

Mia
So I am 7 days late for my period and I don't usually have regular periods but honestly I don't really know because I never really started keeping track until I got sexually active with my current boyfriend and  we had sex about 13 days ago but I didn't worry because it was really just a quickie and we both know for a fact he didn't actually do anything. My boyfriend doesn't want anything to happen unplanned so he is very careful but the more we think about it the more I worry about pre I do remember him going pee before and I also read that the more you stress about a irregular period it can actually make it later... is that true bc if so I have a feeling that stressing out to much could be my situation here. So what do any of you guys think? Is my stressing making it worse? Or could I really be pregnant?Â