Yeah glucophage is not likely to bring down sugar levels to dangerous levels. Many women with PCOS have been prescribed metformin (glucophage), you'll see both names for that.
How many milligrams did you get? Usually you are started slow on it and then it is increased depending on your needs. It can be hard on your stomach so always take it with food.
I went on a low carb diet because of diabetes and have lost 102 pounds in 2 years. I am grateful for diabetes because it saved my life.
I'll give you the link that I have used in terms of managing my diabetes with diet and my blood glucose meter:
http://www.diabetic-talk.org/jennifer.htm
It can be overwhelming at first, so don't feel bad if you don't reach those goals. It's hard to say cause we don't have any numbers to go by. I assume you've had blood work and that your doctor has scheduled a follow up appointment with you to go over that work. A lot will depend on if you are indeed diabetic or prediabetic or what.
If you are, then you will need a meter and the meter will become your best friend. Once you have that then you can follow Jennifer's advice in that link.
If you have more questions, please PM me or ask me. I have some nice charts that explain common carbs. I hope for your sake that you don't have it, but your doctor must have some reason for suspecting it. Let us know, whatever you do find out. And a low carb diet can be atkins but it can be something less restrictive as well. It will be your choice, but yeah you can't go wrong with chicken and vegetables (but not corn, peas, potatoes).