Gestational Diabetes @ 30 weeks 5 days

Kristen
Officially diagnosed with GD. Dissapointed cuz I'm a fairly in shape person pre and during pregnancy. I continue to go to the gym at least 3 times a week, drink tons of water and eat OK (desserts in my first and second trimester likely didn't help). Not obese or even fat and all the weight I've gained (30lbs) is in my belly but I realize that's too much weight too quickly. Making an apt with an endocrinologist today, but what else should I expect to follow for the next 10 weeks other than a restricted diet? Has this happened to anyone else? Thanks!