gestational diabetes

I thought it was going to be no big deal check my blood sugar follow the diet and everything would be fine I am following the diet religiously still no change my mom said to give it time and I will start working it's been a week and a half and it's not working My fasting levels stay into the 150s and all day after meals I'm in the 200 and something's my highest one was 418 no matter what I do no matter what I eat my levels are still high I have been following the diet cutting down on carbs cut all-sugar out I went so far as to drink black coffee in the morning I don't want my baby to be stillborn and I don't want to have to have a C-section because she is too big I'm 30 weeks and I go to my next appointment on the 26th do you ladies think my doctor will put me on insulin to control my fasting and my after meals numbers.

*update* my doctor put me on insulin 12 units let's see how it works

*another update*well at the end of all this I was on 28 units of insulin after meals injections 3 to 4 times today then I was on a pin at night and I was supposed to take 36 units and I ended up having to have a C-section at 38 weeks and 1 day my daughter was 9 lb even and did not drop into my pelvis to be born recovering from a C-section a months later good luck to all you mommies out there