Hello Dr. I am trying for a baby for almost 16 months now. I first went to OB because my period were very irregular since I started TTC like once in 3 months before that it was 40 - 45 days. i had PCOS 8 - 10 yrs back. i am 28 now . My OB put me on CLOMID 50 mg no ovulation. then 100 mg clomid i ovulated only after 45 days. i had to move over to another state due to my husbands job transfer. Hence, after that i visited a RE. She told all my tests and confirmed i have no PCOS , did a HSG and my tubes were normal and other hormone levels are normal. But she also prescribed me METFORMIN . my hemoglobin A1C was 5.9 . then clomid 100 mg and HCG trigger later. My question is hemoglobin A1C be the main cause for not ovulating? and also Do i have type 2 diabetes? or highly prone to have a diabetes??? my paternal grandfather had high and paternal grandmother died of kidney failure. will metformin help me ? do i have to be cautious with my diet ?? i am 5 2 height and weighs 132 lbs.