Welcome to the forums. Good luck to you as you embark on this journey. If there's any advice at all I can impart, it is to NOT let your W ignore your emotional and physical needs. The NRE is going to be tough to deal with, and you're doing the right thing in coming here for support.
If after a reasonable period of time you've found you just can't adjust to the idea, let your feelings be known in a clear and direct fashion. And never be afraid to voice concerns when things are uncomfortable for you. Establish some boundaries that need to be observed to keep you in your comfort zone.
I wish you guys well.