Have you seen cocktail princess's thread today about reaching target? That is with "only" losing a lb a week!
I know we would all love the weight to fall off overnight but as long as it is heading in the right direction that is all that matters.
Plus there than we reasons for not losing as much one week-time of the month, a bit bunged up. And even if you have been 100% and these are the reason, they are only temporary things and you will see results next week.
Stick with it, you will get there