Nervous. Glucose results

Lisa • Pregnant with our first baby boy 💙 due sept. 14, 2015. 👼
Hi ladies, 
I did my glucose test yesterday and it was 153. I have to go back tomorrow for the three hour test. I'm
So nervous. I try to watch everything I eat and  I have always been healthy and not overweight so I'm so confused. Did I do something wrong?