What Causes Ovulation Only With The Help Of Medication?

Hello, My name is Teara Orr im from mississippi i have a rolem with ovulating like i do not have a menustration at all unless im taking tri cycle lo dose i previously went to a dr in jackson the endocrinolgist the prescried me metformin glucophage 500 mg 2 a day only thing it did was make me have a extreme bowel movement Ive tried povera and estradoil nothing seems to work what should i do