TTC 6-7 days late

So iv recently been diagnosed with pcos which I kinda knew I had for awhile as iv been trying for over a year. Anyhoo iv tried going gluten and dairy free as much as possible, my periods are always regular which is weird as I’m 6 days late.

I’m 6 days late and having major headaches and tiredness like I can’t do anything.

Sleeping makes me feel worse! My periods always come on a if early Thursday, normal Friday and if late a Saturday or Sunday. It’s now nearly been a week.

I don’t want to go get a test because I hate seeing a negative at the end and just balling my eyes out. But then I’m like what if I really am?

I’m thinking of waiting until Sunday and seeing if it will come then test

Just curious if anyone been in the same situation and was or wasn’t pregnant