21 day progesterone on Clomid

Ashleigh
Hey all I am on Clomid 100mg and my doctor has me do a progesterone draw at day 21. Well my cycles aren't 28days long and this month I had a positive ovulation test on day 19-20, I told them this but they still said I needed to do the test on day 21. Well it came back a 2.4 showing I didn't ovulate. He basically said im out for this month and next month we will do 150mg :/ 
I feel like I tested too early. What do you all think?