Thanks for the query.
You once discuss with your doctor that what is the cause for the failure of your attempts.
After that you can go for required treatment.
If needed you can increase the dose of ovulation induction
And can use hormonal
If needed you can go for artificial reproductive techniques.
For more details you can ask me through: http://www.healthcaremagic.com/doctors/dr-sree-gouri-sr/63429