Glucose test. How to prepare


Is there anyway to prepare for the glucose test. Having mine in 2 weeks time @weeks 28.

I think my midwife said no drink or eating from midnight the night before the test. Or can I drink water but no food or drinks ( juice etc)

Also, a week before do I reduce carbs and sugar. I hear a lot of people have to come back to retest because people fail the test a lot.

Please share your experience.

I have been struggling with finishing a litre or 2 per day lately. 🤦‍♀️🤦‍♀️🤦‍♀️🤦‍♀️