You are probably just trading off fat for muscle, and perhaps temporarily holding on to some water weight. It happens to all of us. The first time it happened to me I spent an entire weekend depressed and fighting off psychological cravings. Silly me! I got over it and soon the weight resumed coming off.

Don't weigh yourself too often. It makes you crazy. Just stick to the plan, be sure you're not eating too much, keep up your exercise, and everything will flow right along. I think the weight we lose comes off in bursts rather than just melting away every day. So you will have plateaus at times. Just enjoy the diet and have fun.

Good Luck!