First medicated cycle - BFN 😞

My first cycle of letrozole for PCOS did not result in a pregnancy… I had so much hope for this cycle. The doctor thinks I ovulated based off my bloodwork but we have no idea how big the follicle was before it released. The last time they saw it on ultrasound it was only 15mm. Next time I came in a few days later it was gone and bloodwork indicated I ovulated… I’m worried it wasn’t big enough. I’d love to hear others experiences with letrozole. Do you think I need a bigger dose?

Let the period depression begin