Wow, you sure don't waste any time with this one, do you?
Jokes aside, right now I see two options (sort of):
a) This fic is about how they end up married
b) This fic just leads up to them getting married and since there's obviously something strange going on, Lois will throw Clark out and maybe realize she's pregnant after she's back in Metropolis, just when Clark applies for a job there.
So, I'm assuming option b. Don't ask me why. It just seemed to be the more evil one
Oh, and before I forget; don't think I didn't notice Lois evading Clark's inquire into her line of work when she realized he was non-competition.
Michael
PS: About that FDK addiction of yours. You do realize you have an awful codependency set up there, don't you