I have gestational diabetes (FTM)

I'm 31 weeks and just got told the news today. I'm a bit worried, but at least it's something I can control in the sense of diet and exercise. I feel like this was kind of a wakeup call to eat healthier. I don't eat very bad, but I also am not the most health conscious about my food choices.

Anyone else have gestational diabetes? How'd you fair through the rest of your pregnancy with it? Did you get it again in later pregnancies? What does your diet look like? Any tips? Also, what glucose monitor would you recommend me buying?