It might be better for your body if you weaned your baby. That being said, some people have problems with milk products, and as such, if you're consuming 2 cups of the stuff every day, I could feasibly see it stalling you. Why don't you try some sort of protein powder for a couple of weeks instead of the cottage cheese, cut down on the dairy everywhere else in you WOE, and see what happens. If you break the stall, you found your problem, if not, then at least you know one thing it isn't.