Aww mama, I know how scary that diagnosis feels, a few of us sa mommy group namin had GDM din and honestly it's manageable once you get the hang of it! Most of the moms I know just focused on their diet (low sugar, lots of protein and veggies), regular monitoring ng blood sugar, at light exercise like walks, then everything turned out fine with healthy babies. Best talaga na makipag-work closely sa OB mo or the dietitian they refer you to kasi bawat case is a bit different, pero don't lose hope, you've got this!