Sabar ya, GDM on insulin tu memang scary first time, tapi alhamdulillah banyak mommy yang dah successfully deliver healthy baby while on insulin! A few of my mum friends kena GDM, and their doctors usually monitor them closely, most still bersalin around 38-39 weeks, some sampai 40 weeks depending on how stable their blood sugar. Kena follow up closely with your obstetrician and endocrinologist je, they'll decide the best timing based on your condition. Jangan stress, insulin tu to protect baby, and most GDM mommies deliver normal and healthy! All the best, hope everything goes smoothly for you!