My husband and I have been trying for over a year, with no luck. I wasn't getting my period or ovulating, so my dr put me on provera and clomid, and that still wasn't working and I had no idea why I wasn't even getting my period. Finally, I was referred to an REI and she diagnosed me with PCOS but was very convinced that she could get my body to get pregnant, so she started me on provera and letrozole and after the first cycle, I got a positive pregnancy test yesterday morning!