no not technically. you can refuse any test. or you can talk to your doctor about alternative forms of the test. instead of drinking the drink you can eat a handful of jelly beans, or drink real maple syrup. or test your blood sugar at home everyday for 2 weeks and give your doctor the results.
I did the maple syrup, having lupus I was concerned about the effects the drink would have on my body.

everyone really should for the health of themselves and the baby. I didn't have it done but I'm already diabetic so I didn't need too. like the other comments said they can't make someone do it.

Everyone should! But the doc can't make you do anything

My doctor said it's highly recommended, but obviously they can't make you.