Was (barely) GD with 1st baby, controlled easily by diet. Now pregnant with 2nd, only 8 weeks.

Worried about telling Dr. that I was GD for my 1st, as my insurance says that if I am deemed a "high risk" pregnancy that my payments with sky rocket. My prenatals are free, but if noted that I am high risk, they go to $60 a visit! I think it is bonkers that I would have to pay more, especially at the beginning when I would be receiving the exact same treatment / procedures as others when I am not even diagnosed with GD yet - just the fact in having it for my first puts me at high risk.

OF COURSE I want the best for my baby, but if I do the diet now, check my numbers and everything is ok, is it really worth all the wasted money just for them to mark me down as high risk? I mean there IS a chance I won't even be GD with this pregnancy. I actually weigh less that I did when I got pregnant with the 1st.

advice...