I'm in awwwww....

It seemed just like yesterday I we was told the exciting news and I was 6 weeks along. Now, we only have 9 to 11 weeks left give or take. I say that because at 27 weeks and 5 day's I was measuring 30 weeks. I been measuring 2 weeks ahead for 2 month's now and she's weighing what she's suppose to and I've only gained 4 pounds total. If she doesn't come early I will be induced at 39 weeks which puts me at waiting 11 weeks but if she comes 2 weeks early then just 9 weeks. Since I'm diabetic would they move up my induction date? Since I'm measuring 30 weeks and I'm suppose to be induced at 39??