What normally happens to you ladies when you have your period? Do you gain weight before, during or after? Also, at what point in your weight loss, for those of you who are in the thick of things (no pun intended) does your weight fluctuate the most around your period?

I've been doing Atkins for about five weeks and I've lost about 15 pounds, but I can't tell if my current stall is because of my period, or just a stall.

Can any of you ladies help me figure this out?