My period is late

Hey ladies, so my period is a few days late, I know a lot of people say it's nothing to worry about and that it happens all the time for reasons other then pregnancy but I can be a paranoid person. I did stop my birth control about 3 months ago and I never took the placebo pill I would constantly just restart my pill and not have a period. So I was thinking my hormones could just be off. I also was never really an active person and I have been in physical therapy for a few months trying to heal and previous injury so I would say I have been more active then usual as well. I don't have any symptoms and I don't feel any different by any means, no breast tenderness no extra tiredness or fatigue but i just can't seem to get the thought of maybe being pregnant out of my head. What do you ladies think? Am I just being paranoid and need to not worry about it right now? Thanks ♡