First, congratulations on taking the plunge. Having the jitters is perfectly natural, as is having mixed emotions. I think it reasonable for you to request some details that night when she gets home. I'd try to manage that expectation with her before hand and let her know you will be horny as hell when she gets back. You are half of the relationship and deserve some consideration. As for dealing with that night, I would enjoy some nice IR porn but not let that be the whole nights activities. Computer games and LOTR would keep my mind occupied until she came home. Good luck!