gestational diabetes Introduction
Gestational diabetes is a type of diabetes that occurs only during pregnancy. Like other forms of diabetes, gestational diabetes affects the way your body uses blood sugar (glucose) — your body's main source of fuel. As a result, your blood sugar level is too high.

If untreated or uncontrolled, gestational diabetes can result in a variety of health problems for you and your baby.

If you have gestational diabetes, you and your doctor will devise a plan to keep your blood sugar levels within a normal range. The good news is that controlling your blood sugar can help ensure a healthy pregnancy for you and a healthy start for your baby.

Signs and symptoms
Most women don't experience any signs or symptoms of gestational diabetes.
http://www.mayoclinic.com/health/gestational-diabetes/DS00316/DSECTION=3  ¶ 6:51 AM