Seems silly to be happy about 1/2 pound, but the timing of losing that 1/2 pound says I'm doing something right.
My body sometimes decides to change my time of the month. It happens about once per year or less. Usually it will adjust by a couple of days per month over 3-6 months and then I'll be on a perfect schedule until it decides to change again. It's almost always accompanied by stronger cramps and extra bloating and all the other side effects that we consider "bad".
Yesterday it arrived early by 10+ days. Super cramps, definitely feeling the bloat however, this morning I was more than 1/2 pound lighter than the morning before.