Don't freak out. Yes you do need to change your diet. Soda is straight up sugar...it's probably better to get it out of your diet for good. GD is a sign that you could be more likely to get GD later in life so dropping things like sugary drinks is an easy way to help yourself out. Drink water, lots of it.
I was super worried I would be miserable...but when I met with the diabetes counselor at my doctors office I was very relieved. Basically the diet revolves around carbs. You can eat plenty of carbs, but they need to be broken up throughout the day. My doctor has me on a plan where I have:
30 carbs breakfast
15 carb snack
65 carb lunch
25 carb snack
65 carb dinner
25 carb snack
For breakfast I usually have a peanut butter sandwich or peanut butter on 1/2 bagel (whole grain bread/bagel/english muffin...no white bread)
For a snack greek yogurt (dannon light and fit is my fave) and sometimes I use it to make a smoothie with some fresh fruit.
For lunch - an apple, turkey or ham sandwich on whole wheat with lettuce, tomato, cheese, mayo....then a frozen greek yogurt popsicle.
snack - crackers and cheese, nuts, fruit...just make sure to always have protein with your carbs
dinner - some kind of lean protein like steak, pork, chicken...a vegetable and a starch like a sweet potato or baked potato.
snack - strawberries with cool whip and a 1 graham cracker with peanut butter.
I have my snack late, since I sleep in usually...you want to go like 10.5-11 hours between snacking and testing your morning fasting # that is what works best for me.
So as you can see..I eat plenty and I'm completely satisfied AND I have only gained 2 pounds since the end of April yet the baby continues to grow at a healthy rate. I get an ultrasound and non stress test once a week and they won't let me go past the due date...so I feel good that I am being monitored...and things are going well, I have been diet controlled with good numbers since the beginning. Don't cheat your way through this...look at it as a way to make some changes that will help you stay healthy for the rest of your life. Doing it for your child is motivation enough but staying Diabetes free for life should be a good motivator as well.