I am about a week late but irregular periods and am afraid to test

Hi ladies, I have irregular periods and am "over a week late" I should have started my period on the August 4th according to glow but have not yet tested. I was feeling very nauseous and what seemed like vertigo a few days before I was supposed to start (according to glow ) but have not felt nauseous anymore nor any other symptoms .   Because of my irregular periods , I feel like my period is just coming late again this month , but another part of me is telling me that there's a chance. 🙆🏽