Normally to induce ovulation Clomid(Clomifene
) will be kept by the doctors.
Upto 6 cycles it can be tried. But with larger doses and long periods complications like over-stimulation can occur.
You didn't mentioned your height and weight, what was the reason diagnosed for your irregular periods?
One possible cause may be having 'poly cystic ovarian syndrome'.
In this case periods will become irregular and an-ovulation can be there.
Even with the usage of clomifene these people will not respond properly until the hyperinsulinaemia is treated with insulin sensitizers like metformin
If you post the complete details of your periods and previous treatment, I can suggest you.