First cycle of Letrozole and Metformin

I recently got diagnosed with PCOS last month after not getting a period for two months (after coming off BC). Surprisingly the next day after being diagnosed, I got my period and was put on 2.5 mg of Letrozole for CD 3-7 and 500mg of Metformin. Since starting this medication I’ve been tracking with opk.

I’m currently on CD 20 and don’t think I’ve ovulated. I’m feeling a little discouraged and I’m looking for advice or someone to speak to that may be going through a similar situation.