Will my RE prescribe me anything? I've already had an HSG and blood work?

I am also on a diet to lose my belly fat which I believe is keeping me from conceiving. My appointment is on the 21st of this month. I've also had ultrasounds on my uterus and other reproductive organs and everything looked great! My RE told me with my cycles being so late each month that I don't ovulate. So I wonder will she prescribe me anything seeing that I've had all the necessary tests to see if my reproductive system doesn't have any abnormalities?