Thanks for your responses.
Girlygirl, I did lose 1/2" on my waist and hips, so there is a start. could this still be from the water weight though? I don't really care what kind of weight I'm losing, as long as it doesn't come back.
Prior to this I was doing a regular lowfat diet, and the pounds barely came off. I lost maybe 2-3 pounds after doing it for a month, and now I've already lost 5 lbs on SB so it's pretty amazing. hopefully I will continue to lose, since I haven't lost any in 3 days. at least I didn't gain, which is good considering it was the weekend.
I'm still curious about the carb thing. is it common to gain some back after they are re-introduced? I will do it very slowly to be careful!