I too think it's a great number!!! Congrats!
First of all, remember...often times if we are under stress, our bodies will hold on to body fat as a protective mechanism. Aren't we lucky?
1.8 is actually an ideal number. I found that follks who lost between 1-2 pounds per week do VERY well in the long term. Although it is hard to remember, this is a long term (okay forever...but we don't like to hear that word) thing. So, taking your time to get it off, teaches us and our bodies how to get it off and how to keep it off.
You can write down what you eat daily (not necessarily counting points for CORE) and see week by week if certain foods or portions of foods cause you to eat too much, etc. In other words, if they are tempting right now...maybe some foods shouldn't be in your home at the moment because the portions are out of whack. You can also experiment with the FLEX program for a week or two,eating largely CORE foods to see if that program works better for you. If you really like CORE better, after a period of time, switch back to CORE. I really like the flexibility of the WW program.
I did some VERYgeneral calculations....not looking at a calendar....
Weeks left until big winter holidays
August 2
Sept. 4
Oct. 4
Nov. 4
Dec. 3 Total: 17 weeks
Let's say you average 1.6 pounds per week. That would be 27.2 pounds off before Christmas and you will have dropped sizes way before then. Whatever the number is, chances are sky high it will be much better than if you did not have a program helping you.
I agree, slow and steady wins the race. You really don't have to change a thing, but if you want to, examine what you eat to see if you want to tweak it a tiny bit.
Congrats...keep up the good work!