That is so true. The only "sweet" I allow myself these days is my daily cup of yogurt (with either blueberries, strawberries or raspberries). Because I don't eat any other sweets, this tastes just like ice cream used to taste to me. In fact, my cravings for that sort of stuff is satiated by the yogurt. The blueberry yogurt I had this morning reminded me of blueberry pie with ice cream - only without the crust, which I don't miss at all.
The carbs listed in yogurt can be misleading as the FDA forces food companies to list carbs "by difference." It's complicated to explain but bottom line is that yogurt has much less actual carbs than what is listed on the food label. If you want a technical explanation of why this is so, type "yogurt" and "low carb" into a search engine and you should find some articles.
But don't just get any "supermarket" yogurt. Read the ingredients carefully. Many of the big companies (like Dannon) add high fructose corn syrup and other junk to the yogurt. This you do not want. Get the all-natural brands like Stonyfield Farm (which I prefer) and make sure that the yogurt contains live cultures. Yogurt without live cultures isn't really yogurt at all and you lose a lot of the health benefits that real yogurt provides. Yogurt with real sugar is okay unless you are really on a strict low-carb diet. For me, it's the only real sugar I get all day and I make sure I get it in the morning where I will have all day to burn it off. But some of these all-natural yogurts are made with Splenda. I haven't found any of them in my local supermarkets yet but I hear that Sam's Club carries one of these brands.