What are the chances?

Advice needed here everyone!

I’m aware this is going to be a silly question to some people, but I’d really like some help. My period has been consistently 3 days late for a while now, but it always comes as it usually would (normal-heavy, lasts 5 days). My period was due 3 days ago today, and I haven’t had sex in 5 months. I’ve never had unprotected sex and every time we used a condom and he pulled out.

Could it be possible that I am pregnant? I’ve got no pregnancy symptoms, nothing particularly unusual. I’m just paranoid I guess. I’ve heard of cryptic pregnancies I think they’re called - where you get no symptoms but you are pregnant. Could it be that? I have been under a lot of emotional stress due to a bad flare up of my anxiety & depression, so that could affect my period I guess.

Please, any advice is appreciated :)