I can understand where you are coming from on this, when I was pregnant, I was put on a low carb diet. Its not easy, but it can be cheap. The way I did it was to look at the labels, 15 grams is one carb. My diet consisted of 2 carbs at breakfast, 1-2 for snack, 3-4 at lunch, 1-2 snack, 3-4 supper, and 1 at snack. I ate lots of veggies, like broccoli and cauliflower, some have carbs, so watch that too, but for sure broccoli and cauliflower is so low its a free food. A good book on Calorie counting is a plus on dieting, it usually has the carb counts too. Sara Lee's 45 calorie and Delightful has 9 grams per slice, 18 for 2, so 2 slices is one carb count. Check if the bread thrift store has them, thats were I get mine.
Since it is summer now, and if your hubby loves potato salad, substitute Cauliflower, fresh or frozen, in for the potatoes. You cant tell that it isnt potatoes at all. Follow your recipe the same other wise, well limit the sugar if you use that.
Instead of getting the books, look online for the websites for the atkins diet, or others, or go to the library to look at the books, no need to buy one, except a calorie counter book (they also have ones with all the restraunts that are popular). Good Luck!