Have you measured yourself? If you were not used to eating so much protein, you may be gaining lean muscle mass! That's a good thing, and masks fat loss because muscle weighs more than fat, but takes up less space. Lean muscle also raises your metabolism 'cause muscle needs more fuel to maintain it than fat does. A lot more, in fact.

How are you fitting in your clothes? That's the true test of whether or not this is working for you!