Really worried

Aahana
Hey guys, 
My period is currently 5 days late and I can't help but stress out about it. I did have sex once earlier, but we used a condom and there didn't seem to be any holes later when I checked. Earlier I had job interview stress but I got an offer (thankfully) 2 days ago so I'm not sure if that stress is what's causing my period to be late. I sometimes get light cramps, a typical pre-period sign for me and I'm getting heavier white/clear discharge. I'm so stressed out about this but at the same time I can't really tell my mom about it/I don't have the freedom at home to buy a test like I do when I'm at college. Sorry this is so long, but do you guys think I'm overreacting? 
Thanks 💜