Hi,
I am t2 as well, and we are hoping to have another baby soon. In fact I was diagnosed because I asked for pre conception blood tests.
My GP has given me a lot of support and I have nearly got my Bmi down to what is recommended. I will be starting on the high dose folic acid next month (it is recommended that we take higher doses) and I think they like to see hb1ac at a safe level first. I'm due to have mine done next month, fingers crossed.
Good luck. There is some NICE guidelines you could read, but I don't know how to do links on my trusty i-pod.