I can do "perfect" program days and have the scale "betray" me.
And I can be "bad" and have the scale surprise me with a lot of "love."
It's all me getting emotionally tied to a number on a contraption that I'm choosing to stand on. Sometimes, it's far better for me to just track my progress via the fit of my clothes and how I FEEL.
(Like today, for instance.)
Don't fear the scale. It's just a tool. So's the tape measure. So's the fit of your clothes. And so's--most of all--how you feel!