Just try hard to pass it! I failed my one hour & passed my three hour & found out that's a lot more common than they say. The one hour is just so sensitive I think! Good luck
If you fail it then that means you will have gestational diabetes you will need to change your diet they will actually go over the diet restrictions as well as you will need to test your blood sugar 4 times a day and you will need to keep track of it and report that to your blood sugar consultant
what @reaganmommy2015 said Im prediabetic and they treat me as if Im diabetic. I test my sugar 4x a day, log my foods, check my urine for ketones and avoid certain foods.