Should I be worried?

So I’m really trying not to stress but I can’t help it .. I’m currently in the middle of a pregnancy scare☹️ my period is currently 10 days late!!! I had sex once in August, with a condom, and I’m so confused as to where the hell my period is .. ( I know condoms aren’t 100% safe) Last month is was 8 days late .. but I didn’t have sex the first months so I knew I wasn’t knocked up. This is time is different 🥶 I had sex again on like the 3rd day late but I had kinda forgot all about it supposed to be coming. I’m really worried because I didn’t have one all September. And I don’t wanna take a pregnancy test. That would literally turn my world upside down.