What's going on?!😱

I am 6 days late on my period, it was supposed to start September 3rd

and it's been stressing me out I don't know if it's just because of stress from the upcoming hurricane hitting Florida (I live in Florida) or stress from other things or if I'm actually pregnant, I went skinny dipping with a bunch of friends last month in a swimming pool on August 10 , there was guys there but idk if it's possible to get pregnant from that, we didn't do anything sexual but we were close to eachother😰😰😰