Do we ovulate or not at all?

Pe
Im new to PCOS and i've been reading that though our periods may be very long (mine is like 50 days) we might still ovulate when the period eventually arrives. I have never tracked my ovultation yet, and i have the clomid that my doc just gave me but i'm still curiouse to see if i ovulate naturally when my period comes. So i dont know if i should start the drug or just test if i ovulate... With the risk that i dont and then i have to wait another 50 days. Recommendations? Own experiences?