Letrozole/Fermara Success Stories?

Abigail

I have PCOS, I'm 20 years old and my husband is 26. We've been trying for 4 years. I don't ovulate. I tried clomid before and it did nothing. I'm being prescribed these fertility medications tomorrow. I've heard it is better for women who have PCOS and for women who Clomid didn't work for. Any success stories?? How long did it take you to get your BFP? How long did it take you to start ovulating?