Lee Ann, this is the reason I always suggest that people not step on the scale every day, at least not until they can accept a fluctuation like this without getting discouraged.
These fluctuations are normal, and if you hadn't stepped on the scale today you never would have noticed it!
You might recall that I apparently stall at week 4 of the plan (others seem to do it at week 3). That happened to me on my first phase -- at week 4 I lost .5, and on week 5 I lost .5. Yesterday, which was the end of week 4 for my second phase (the post Hawaii one), I had no loss.
Actually, here's what happened yesterday: Last Sunday I had reported a 4.0 pound loss, down to 212. Yesterday morning I stepped on the scale and it read 213.5, and no reason why it should have. Ten minutes later (I am not kidding) it said 212.5 (and this is a new and trustworthy scale). I have noticed that the scale will change ten-fifteen minutes after I first wake up in the morning.
I chose to report my weight change yesterday as "nuthin," partly because my scale has a plus/minus error factor of .5, and partly because I really didn't want to acknowledge what looked like a "gain." I stepped on the scale once later on in the day, and it said 212.0.
I went to bed late last night -- about 1:30 this morning actually. Just before I got into bed, I got on the scale: 213.5.
This morning: 212.0.
I ain't getting back on the thing until Sunday.
Have you had a slow/no loss week yet? It happens to us all, and it really will drive you crazy if you step on the scale every day. Do yourself a favor, and don't.
Other things that can affect what the scale shows: Time of Month, not enough water, or the outside temperature being very hot and humid.
Hang in there, hon, as long as you stay true to MF, it will be true to you.
Gotta run to work. Later!