letrozole

Hello everyone! I'm kinda new to Glow and have never posted before but I have fertility problems and I thought this might give me some inspiration... I've been off birth control since July 2014 and I've been going to get my progesterone checked for the last 6 months . I'm 28 years old and do not ovulate. Today they gave me letrozole and I was wondering if anyone has had succes with it. My progesterone  levels since January have been 0.96, 1.17, 5.8 , 2.17 n/a , 4.2 . Dr said they have to be higher than a 10 to show any ovulation? Any help would be much appreciated! Thank you