I undergone ovulation induction from Jan my doc put me on letrozole 5mg in 2 nd cycle and  12 And 13 day she gave filgratism and decapeptyl injection for egg rupture and egg rupture after 24 hours but no pregnancy on 3rd cycle march she put on letrozole 5mg and clomid on 9 day scan three dominant follicles she repeated the injection for egg rupture all three follicle ruptured one from right and two from left but no pregnancy i and my husband undergone tests my husband's test are clear I have mild pcod I haven't taken tubes test is it necessary why am not conceive please answer