If you know you're going to be counting the calories after your baby comes, it is obviously a good idea to think along those lines when planning your freezer meals. Just be sure you're not eating a dieters diet while you're pregnant--cook healthy meals but also eat healthy portions, and make sure to include plenty of healthy fats in your diet, too (add sliced avocado to your salad, for example, or snack on almonds and pecans).
Most recipes can be lightened up pretty easily--there's no need to go searching for healthy freezer meals when you can just use common sense. For example, substitute olive oil (a healthy fat) for butter whenever possible, buy reduced fat cream soups, use ground turkey instead of ground beef, and buy reduced or fat free cheeses, milk, sour cream and other dairy products.
This freezer recipe for sloppy joes (originally from Erica's Recipes) includes healthy vegetables and has been lightened up with turkey instead of ground beef:
Healthy Slow-Cooker Sloppy Joes:
2 lbs lean ground turkey
2 16-oz jars your favorite salsa
3 cups mushrooms, sliced
1 1/2 cups red bell pepper, finely chopped
3 medium carrots, grated
4 cloves garlic, minced or crushed
1/3 cup tomato paste
2 tsp dried basil
1 tsp dried oregano
1/4 tsp cayenne pepper
1/2 tsp salt
Brown the ground turkey in a skillet over medium heat.
Add the turkey to your slow cooker, then stir in the remaining ingredients.
Cover and cook on low for 4 to 6 hours.
Serve on toasted, whole-wheat hamburger buns with a side salad or grilled corn on the cob.
And don't forget, a pregnant woman should never feel hungry. If you are expecting, eat until you are full. With healthy recipes like this one, you can do so guilt-free!