Janet,
A loss of one pound in a week on WW is actually a very nice loss. I know, I would love to lose 5 pounds in a week, but that isn't very healthy and it won't be fat loss, it will be mostly water. We really can lose only 1-2 pounds of fat per week.
I'm one to talk though, I've been trying to lose the same 10 pounds all summer and look! - it's almost WINTER!!!
I know it is discouraging, but WW will work, as will using the glycemic index - it's all in what is most comfortable/easiest for you.
Gayle