Good luck to you! I think it is a good idea to plan ahead for a Master-Cleanse like you are doing. I always do and I think it's part of the reason that I've been able to successfully complete each one. I tell myself once I'm on it, I have no excuse to go off, I planned for it after all!
I am on day 6 of my fifth Master-Cleanse and doing well. But, ZERO (yes you read that right) ZERO 00000 zip nada zilch pounds lost. I am very glad I am not doing this for weight loss or I'd be pretty damn frustrated. I can't say that I'm thrilled that I haven't lost any weight, because I need to shed about 50 more pounds, but it will come off when it's ready.