I'll try not to be pushy, but seriously consider counselling. There are issues that you will run into that won't cross your mind until later. You and your now wife are going to be going through a lot of changes. Surgeries, rearrangement of how you view life and other people etc. At least you have already been in a long term relationship, and have made it this far.
Right after I transitioned, I met a girl through another transgender. So far I had only had my chest done, but where I came from, once that was done, you could legally be a male. I expected this girl to flip out. I'd only been dating her for a couple of weeks, but felt I needed to know how she would react before we got any closer. She seemed to accept it right away, and we talked all night. Two years later we were married, and seven years after that, divorced. Why? In short because she didn't really believe I was a man.
The point of me telling you that is not to make you fearful of what will happen, but rather to encourage you both to get counseling to prepare for the things that you will face ahead. Once the adrenelin rush is over, and life settles down, you may run into Dr.s who are biased, friends who have a problem with your marriage. Even if these things don't bother you personally, its hard to deal with how others may think.
I give you a lot of credit for realizing that your "husband", now your wife (actually she always was), is the same person you married and are willing to go through all the psych tests and surgeries. Those experiences can make you even closer. Kind of like going through a battle together.
Sam1234