Gestational diabetes

Diabetes is a disease in which your blood glucose, or sugar, levels are too high. When you are pregnant, too much glucose is not good for your baby. Out of every 100 pregnant women in the United States, between three and eight get gestational diabetes. Gestational diabetes is diabetes that happens for the first time when a woman is pregnant. Gestational diabetes goes away when you have your baby, but it does increase your risk for having diabetes later.
Source: MedicinePlus