i've been told the same thing, Just eat balanced, ask your RE if you can see a dietician, i have one i'm working with and its great! i lost over 30 lbs, but i'm struggling to lose weight as well b/c i put the 30 i lost back on. I also have PCOS and i am also pre diabetic. They have me on 1500 of glumetza and it seems to be helping with my blood sugars.
If your A1C is high you are likely pre-diabetic. That combined with PCOS will make it tough getting pregnant.
Ask your doctor about taking metformin. This will help regulate your insulin levels which will help your diabetes and will work with your ovaries to hopefully get them to ovulate.
Metformin has also been known to help women lose weight combined with diet and exercise. Watch your portion size. When you eat a carb make sure you've got a protein. Cut out sugars. Start walking.