1 Week mark - weigh-in at 177.4

So, I was really uncertain what to expect when I did my weekly weigh-in this morning. My clothes don't fit any differently, but I feel better and more energetic than I was feeling. Anyway, I stepped on the scale and it said 173.8 and I was thrilled. Then I decided to recheck before I posted it, and it was 177.4 .... which is still great because I am down over 4 pounds in the first week. But after thinking it was down 8 pounds, 4 pounds is a real disappointment. :-(