Wa'alaikumassalam! Alhamdulillah, kalau diet-controlled GDM and GBS you're managing well, tu dah good sign lah. Honestly, most mums with GDM don't automatically kena induce, a few of my mum friends with GDM juga deliver on their own timing, tapi depends on your doc's assessment at 37-38 weeks (they'll check baby's size, your readings, etc.). Since you've done 2 already and managing diet, you have a better chance lah, tapi sebab ada GBS, antibiotics during labour akan kena untuk sure. Best you discuss with your gynae around 37 weeks about induction vs. waiting, dia akan scan to make sure baby size is okay, sebab GDM babies tend to be bigger. Hang in there, you're almost there!