Letrozole

My doctor wants me to try Letrozole before going on to other treatments, but they’ve already confirmed that I ovulate on my own (3 ultrasounds over the last 3 months confirmed ovulation without any drugs). Last month I tried it Letrozole for the first time and they confirmed that I only released one egg, which is normal for me. I’m just curious if anyone has had luck with Letrozole if you already know that you ovulate regularly. How can it possibly benefit me if I already ovulate? Are there any other benefits other than stimulating ovulation? I’m supposed to take a pregnancy test in a few days when my period is due, but I’m just really skeptical because I don’t see how this month can be any different than before, plus I already got a negative test 2 days ago on 9Dpo.