21 day Progesterone *updated*

I ovulated on CD 19 (Jan 27th) , got my level drawn on CD21, my level was less 0.5. Shouldn’t my levels be drawn a week after my positive opk to be accurate?

Update:

I spoke with my physician today and explained. He agreed to redraw my progesterone level on the 3rd.

Fingers crossed for a level over 10 to prove I ovulated!