You definitely can refuse it. I didn't with either of mine, but especially second time round it kind of made no difference. I was fine both times, didn't need the test. I just didn't have GD. But, I'm overweight and have big babies (more so with my second, he was 10p5) so the Drs didn't really believe my result. First time was ok, but with DS I was supposed to be discharged after 4 hours and they made us stay overnight. Poor baby had to have a heal ***** every 2 hours to check blood sugars, which were perfect anyway.

That being said, I still won't refuse it this time. If the same thing happens again I do want that result saying we're ok.