This is totally normal, and temporary:
I just started exercising to lose weight, but I've gained weight. Why did this happen? www.sparkpeople.com/community/ask_the_expe
You aren't gaining muscle. Building new muscle mass is very difficult for women, and takes months or years, and a calorie surplus. Not a few days and a calorie deficit. When you're eating at a calorie deficit (As most of us losing weight are trying to do) the most you can hope for is the preservation of the lean muscle you have, although you CAN improve its quality.
Edited by: DRAGONCHILDE at: 2/21/2013 (10:43)