Hi, firstly well done on sticking to it to lose the three stone and no cheating. If you decide you want to change plans then ur CDC will (as long as they are well within date) buy your packs back off you ... or like you said you could finish the last few. As littlemissslim said above you could have say 5-7 days eating again to get your body back on food before joining SW, please do not expect to lose weight immediately (fab if you do but....) it will take 2-3 weeks for your body to trust that it is getting regular food again and for your metabolism to wake up. As for tomorrow - there are 2 ways to look at it. If you have decided you want to change, eat tomorrow and have a damn good time without over doing mind, or you could follow the 810/1000 rules and have the meat with plenty of veg to minimise any gain whilst you are still on Cambridge. It really is ur decision my lovely but if I was stood in front of you now I would beg you to come off of CD. I had been off CD about 5 weeks when I started SW but I was still not eating the amounts I do now as my head still said "do not eat too much" but I lost 3 the first week, stayed the same second, 3.5 the third, stayed to same the fourth but things are starting to settle now into regular pattern. I came back from 2 weeks in Italy and manged to lose 2! SW is an eating plan like no other, nothing is out of bounds you can have a little syn counted chocolate each day or crisps. Pasta, rice, potatoes, cous cous .... all of it available with no restrictions (though don't over do the carbs for the first couple of weeks off CD). Anyway Hun, I will stop going on.
Have a great day out tomorrow.
Tracy x