I would not take the 3 hour. You're already poking yourself. There is nothing they are going to find out from the 3 hour that you can't provide with your own pokes. You are at the point in your pregnancy when blood sugar is highest. If you made it, even just barely, by your hospital's standards, you still made it. You are going to know if there's a problem in those blood sugar levels you take. And if you see it higher than you are comfortable with, then do something. Other than that, take it easy!