Im sorry to hear this. A friend of mine recently has been trying to get pregnant... it was not happening so she went to the doctors and they found out she is also pre-diabetic. The doctors won't help her with fertility treatment until she has her levels under control again and loses some weight. Its hard for her to hear this but its much better that she caught it now (shes only 26) and can make the changes to her lifestyle while still being young enough to have kids in a couple years!
Good Luck to you! I know you can do this and be great at it.