I think you get scheduled sooner..not sure to be honest.

does it make it a diference i have gestational diabetes?

every Dr is different I know some ladies that they had their date scheduled as early as 30+weeks. and the dates were after you hit 37 weeks most times now days before 39 weeks is due to a medical reason.

my 1 pregnancy was a emergency csection. im 32wks. but i havent ask my doctor wats the plan

I think you can schedule one as early as 34 weeks but make it for 37+ weeks