Hi I am 31 years female, had three cycles of clofert 50 mg from May to July'10, had two cycles of Letroz 2.5 mg from Aug to Sept'10 and again had three cycles of Letroz 5 mg from April '11 to May'11, ifor being pregnant, all through inter-course but no result so far . Now my doctor wants to move to injectibles. In all the stimulated cycles I ovulated, but failed to ovulate in natural cycle in june'11. Pls advise