I’m 4 days late negative test, what should I get?

I think I’m gonna go ahead and count myself out and look forward to future months, tomorrow I will be going to the store to get some tests, anything else you’d recommend to get? I’m gonna try making a list tonight of everything!

My period is late by 4 days, I have an average 29 day cycle, my last period was January 11th, I still haven’t started, so I’m just gonna assume I’m not pregnant.

I know they say your not out till af comes but at this point I just think I may have ovulated later or it’s just delayed idk. As always, advice is always welcome! Thank you!