I'm Taking Fertyl 100 Mg From 3rd To 7th Days

i'm taking fertyl 100 mg from 3rd to 7th days of cycle for the last 4 months. In the 3rd month, i had follicle study and had an injection on hip on 13th day (don't know name, but it is for release of egg) and made love in 24 hrs, 36 hrs, and 48 hrs after injection. and the same in the 4th month (but no follicle study this month). How many months it takes to get pregnant.