Period not fully starting because of stress?

Darcy • I am inimitable; I am an original. 🦋 Chaotic Neutral

Typically, my period is almost always like clockwork (within a day or two of the estimated date, spotting on day 1, heaviest flow by day 2, and done within a week.) This time around, a few days late, I've been spotting for the last 2 1/2 days, nauseated, cramps, all the good stuff but the heavy part of my flow still hasn't started...

I've been under quite a bit of stress lately, trying for the past several months to find a job, trying to get my crafting projects sold on the side, worrying about making my money stretch, and helping out for a relative's upcoming wedding that isn't exactly going the smoothest. Plus my cycle not doing its typical thing this time around isn't helping my stress level...

I'm a virgin so I'm 100% sure I'm not pregnant. But for someone who for the most part is consistent, is it possible that all the stress is finally getting to my body and throwing me off? As long as I'm passing something, should I try to relax about it?