I hate being pregnant, help.

I know I'll be happy once there's a beautiful baby here, but right now I'm miserable, and I still have 6 months to go. I'm starving but nauseous, exhausted but can't sleep due to hunger pains and needing to pee every 2 hours, I feel completely out of control of my body, and I am ridiculously depressed. I see my ob again on the 20th and will talk about all of this, but can anyone relate? I thought this was supposed to be a happy time.