I failed the 1 hour test but passed the 2 hour fasting test. The test itself was not a big deal and I had no bad effects from it. I didn't have to eat anything special before it.

At my 24 week scan I was told bubs was measuring at 5 days ahead so when I failed the first test I was sure I had GD, particularly as I'd been craving sweet stuff, am over 40, have a family history of type 2 diabetes and was overweight when I got pregnant (3 of the risk factors). I did not have GD.

Best of luck with the test.