Sugar test

So lately I have been feeling a little bummed and nervous and we’ll just a mix of emotions. I had an appointment on sep 27th for my glucose test. A week later I get a call that results were elevated so I just get it done again to see what’s going on. I’m really scared and nervous above all. I have appointment this Monday the 14th. I know I have been eating normal. I don’t eat much sweets. I don’t crave them. Overall I feel my diet is pretty good. I’ve only gained 4 lbs this whole pregnancy thus far and I’m 30 weeks. 2nd trimester was rough with horrible morning sickness. What advice would u recommend? I greatly appreciate any feedback.