Colmid "Generic"

Chez
Has anybody took The generic colmid and gotten pregnant? My doctor prescribed it to me, at 50mcg . She said to take it days 6-10 of cycle but, I've been seeing most people say they'd took it from cd3-7. 
Also she didn't even do any check ups of anything on me , we just talked at she left the room and came back with this prescription of 5 pills and only 6 rounds of it . So I don't know exactly why I'm having a hard time get pregnant. My period is irregular and it's always been since I started it. My husband and I have been ttc for 2 years. Any feed back or advice?