sugar in urine

I have my one hour test tomorrow and am scared I won't pass. Earlier in my pregnancy, at about 14 weeks, the nurse checked my first morning urine and asked if I had eaten sugar before bed because I had sugar in my urine. I had, I had eaten Oreos before bed. (Bad I know). She said sometimes when you eat sugar before bed you end up with some in your urine. She didn't act like it was a big deal after that and the doctor never brought it up.