Take a deep breathe ! Everything is going to be fine. Don't assume something must be wrong because you haven't lost a pound. While a safe weekly weight loss would be 1-2 pounds per week, there may be weeks you don't lose. There may even be weeks you gain ! And that doesn't mean something is wrong.
To be very honest, it could take 6-8 WEEKS of healthy eating and regular exercise before a person sees a change in the scale. And that too is perfectly normal. This isn't the Biggest Loser. Those types of dramatic losses are just not typical.
Don't worry ! I can assure you that IF you continue to eat right, watch your portions and get some regular exercise that includes some strength training, you WILL see change with time. Remember, you didn't gain the weight overnight, it's not coming off overnight.
Be patient with yourself and your body.