So almost 4 days late😬

So my period has been almost 4 days late so far and I'm really starting to get paranoid. The only kind of sexual act I've had with my boyfriend is anal sex. I don't have any of the so called pregnancy symptoms other than having to pee a lot but I've always had that problem so i cant really relie on that. I've been stressed out about a lot lately and have been stressing about this, i heard that stress could be the main cause for this to happen. Idk does it sounds like pregnancy? I bought 2 tests just to be sure.