progesterone levels

Alix • Wife. Mom to Aria.
Iv been TTC for over a year and started seeing my OB for infertility 4 months ago.  After running all the test, he said im not ovulating. My progesterone levels were 1.2 and and then 3.1 after a round of clomid 50mg.  However I have a 34 day cycle and he's testing on CD 21. Iv read in so many places online that's too early for a 34 day cycle. 
UPDATE: I called and spoke to my nurse. She said I was wrong. Progesterone test are always done on CD 21 reguardless of cycle length and I'm not ovulating &  that was that. So I have made an appt for a second opinion.