Should I take a test or wait a little longer?

Hi everyone! So currently my period is late by a little less than a week (this isn’t that unusual but a little bit). My SO practice safe sex and only use condoms (yes we check them, change them were very careful about it and I can’t go on bc from my anxiety and other medications). I am a little anxious about it being late, but I wouldn’t be surprised either. The last month I’ve been stressed beyond belief (my university dropped all my classes for a days, I had a massive project for my internship that I’d been finishing up and barely made the deadline (5 days ago) and I moved twice this month). So I can understand my period being late since I’ve been stressed out.

I don’t think I’m pregnant. I’m a type one diabetic which generally makes fertility low too. And usually before my period I get way way emotional, tender breasts and feeling very very tired. I only feel tired, which might be from my classes (it was a schedule error) but none of my other normal period symptoms, which I would think would be amplified if I were actually pregnant. I was going to wait another week to take a test and go from there. What do you guys think?