Gestational diabetes and induction ???

I need some advice ladies. I'm 36 weeks and I see my regular ob plus a high risk ob, my dr said that he doesnt want my sugars over 120-130 and when I saw the high risk dr last week they agreed and they upped my dose of metformin for 1500 mg to 2000 mg to make sure that I don't have any issues with my blood sugars. They both said I have gestational diabetes but its more borderline. And they have no concerns just to watch what I eat and stay active. Ok great. Well I go to the high risk dr today again and see another dr bc they rotate, you never see the same dr. He looked at my list of blood sugars from the last week and anything over 95 he circled and said it's too high. He wants my sugars between 60 and 90.... so he added a new med with my metformin called glyburide and said he wants me to continue to check my sugars 2 hours after meals and if they aren't between 60 and 90 by Wednesday hes adding insulin. I am not diabetic before I got pregnant and I've always been borderline but jts been controlled my metformin. Here's the deal. My regular ob is inducing me at 39 weeks. In 3 weeks.. this dr told me that if he adds insulin my body will become dependent on it and I'll be on it for the rest of my life and theres a huge chance that my baby who is in the 53rd percentile and doing amazing will more than likely be in the NICU after shes born bc she will be dependent on the insulin hes wanting to add. Ok. I have been told by my dr and the high risk dr I saw last week theres very teeny tiny chance that in maybe 10 years I become diabetic and that's bc of my family history and they say I'm really just borderline with gestational diabetes and I wont have any diabetes after my babys born. So I'm really torn bc if I have to take insulin I know I will not do it. I've seen family become worse with it and i dont want that. My question is i see mu regular ob tomorrow I'm gonna talk to him but if it comes to Wednesday and the other dr says i need insulin can i refuse and tell my regular OB i need to be induced now? My babys already 7lbs and doing great. I was born at 37 weeks and was 8.6lbs and never had troubles but can he refuse? Can i refuse the meds and insulin? I'm so lost. I want to be firm with him about the insulin but i want to be induced sooner if the other dr says I need insulin. Is that a outrageous request? What can I say or do if he refused to induce me sooner? I really don't think he will bc hes not lile that but if he does what can I do?????