I wouldn't wait to get married. I'd set a date end of this year or sometime in 2013 and get married. Your fiance loves you as you are. There's not any reason to postpone your wedding; I also wonder what a person does if they don't meet their goal, do you postpone the wedding further? With all the things you have going on in your life, it's an added stress you don't need. I'm a believer in pulling the trigger if you want it.
I would be doing cardio 4-5 times each week, along with some kind of strength training. To help avoid emotional eating, clear out all your cupboards of junk food or food that triggers the emotional eating. That way you don't have any options when you feel like emotional eating.