Ladies, do you lack of motivation during your periods ?

I don't usually put too much stake into motivation as far as weight loss goes, so that's irrelevant for me. As for eating within calories, I don't find it any harder during my period. Before my period, though, that's a completely different beast. I'm so hungry then, I find it a struggle to even keep my calories within maintenance. As for exercise , I don't do any for the first 2-3 days because I'm on narcotics that make it kind of dangerous for me to step on the treadmill. No big deal. 3 consecutive days off is a nice gift for my joints and a welcome monthly break.