Yes, please follow Gynae advise. I also hav GD, met dietician and prick my fingers 7x a day for 2x a week. Controlling blood sugar is beneficial for both baby and mom, anyways it’s near / in third trimester already. Just tahan 3 months like that, it’s good for us.
My gynae only tested me at time 0 and 2h. Did not take any test during 1 hr so not sure if that is important?