Should I test

So really long story short

Cycle flucuates between 35-37 days

14 days after my last period I had a day of spotting

8 days after that had a weird bugger like discharge with some blood

Here we are day 38 no AF as of yet...

And so I have been feeling a little off but nothing to drastic. I don't have any Allergies but I have been sneezing constantly for no apparent reason. And I usually get AF between CD 35-37 more often than not CD 35...I really want to test but cant help but feel like I should just keep waiting because she might just show up...thoughts?