Hi, I have recently had my first child. I am nursing exclusively and am having a hard time losing. I am hoping someone else is nursing and we can get together...
tara
If you check the rest of the forum there is a spot called dieting with obstacles that has a sub group for pregnant and/or nursing mums where you can find others that are in the same situation as you. 
Green tea is not bad if you're nursing. If the caffeine seems to effect your little one, you can always drink decaf green tea. I usually drink 1-3 cups of tea per day and it doesn't seem to bother my baby at all. Make sure you drink plenty of fluids in general while nursing too. WW is a great plan so stick with it if you can. Also, try getting out for a walk with the baby a few times a week. That may help your weight loss too. Good luck! 
Two is plenty for us!