Clomid 50mg and PCOS

Tas
Had my first follicle tracking scan today after taking Clomid this cycle induced by provera. O was told it didnt work for me as it should have as I had one big follicle measuring 11.6 and the other 5.something both on the right ovary, nothing significant on the left. I have pcos so my period are very irregular and now I have been asked to go in for progesterone day 21 blood test. Does this mean I could potentially still ovulate with the Clomid just a bit later or am I out for this month? Any advice would be appreciated.