Letrozole and Timed Intercouse

Jas

I just started my first cycle of letrozole (took for 5 days) and then went in for an ultrasound. Doctors said I have a follicle that’s 21mm. We had timed intercourse for 3 days but only had sex twice. After another visit, my progesterone said at 36.6. Has anyone been in a similar boat and got pregnant? Any success stories?