Need help with chart--please read first!

Ok so on CD 17 I went to get blood work to see if I have ovulated yet (check my progesterone levels). My levels came back lower than ever, a .7, which means the follicular phase. I'm on cd 27 now (when I expected to get AF this month) and as you can see my temp has been going up slightly, not the drop that was expected.
My question is, is it possible that I ovulated after cd 17, making that test inaccurate? Also, ignore all the + opks--I got a lot of dark ones this month so I was confused, the only one that was darker than the control was the very last one, and then I ran out and couldn't test anymore.