When should I test?

This is our first month trying. I have been using iFertracker to track bbt. It makes it super easy, I have PCOS only because of high testosterone but i have a pretty much regular 33 day cycle every month. I just ovulate late between cd 17 to cd 25, I use temping to confirm being that ovulation kits don’t work for me. We baby danced around the time I felt was my fertile window, I think we may have caught it. I started taking progesterone 2dpo to help with conception. What day would be the earliest I can test?