freaking out

I normally don’t care much about my period because I’m not sexually active and it’s usually irregular (it comes frequently, think 10 day spans) but I checked eve a couple days ago and it said my period was coming. It now says I’m three days late and I’m stressed because while my cycle could just be off balance from a small trip as well as stress, this gap is longer than I’m used to and eve itself is causing me so much stress. There’s no way I could be pregnant and I’ve been super bloated and constipated since my trip and I’m feeling so tripped out and honestly scared. I feel like I’m psyching myself out but I’m worried that somehow the two are tied and my body is on the fritz??? help me lol