The key to treating it is to act quickly! You can do a lot to manage your gestational diabetes, including: Checking your blood sugar to make sure your levels stay in a healthy range. Eating healthy food in the right amounts at the right times, as advised by your doctor or dietitian. Being active. Double check with your doctor about what kinds of physical activity you can do and if there are any kinds you should avoid. Monitoring your baby. Your doctor will check your baby’s growth and development. If healthy eating and being active aren’t enough to manage your blood sugar, your doctor may prescribe insulin, metformin, or other medication.