FYI, gestational diabetes can happen to anybody, but provided that you adjust your diet accordingly, it typically leads to no further problems. Unchecked, though, it can lead to VERY large babies which can be difficult to deliver, plus the possibility of the mother developing permanent diabetes.
Most ob-gyns currently test for gestational diabetes a little later in the pregnancy. We did it earlier because of my family history (a great-grandmother -- or great-great-grandmother, not sure) who died of diabetes complications.
And no, my blood was not a frothy pink strawberry smoothie, as it was in last night's dream. Too bad; that was tasty!