It can be discouraging if you look at that scale number as your only measure of success. Especially when you KNOW you were doing the right thing, you want that "pat on the back".
But scales are finicky things: remember, your body is the ultimate calculator, and it takes its own time doing these things. The real success lies in nurturing that body. It will eventually recognize that it is being well cared for, and come to its natural place... with so many benefits well beyond the scale!