Congratulations, Dedalus and Foxy!
As the mother of three, count 'em, THREE, girls, I'd say you're in for a treat!
My only advice is not to get too anxious about how "instinct" is supposed to kick in. That's bull. You've never done this before, so you need to LEARN how to parent. Therefore, read, read, read, and discuss with one another beforehand how you feel about discipline.
For example: Can one ever spoil a child by holding them when they're crying? (Even if you answer "No!" your resolve will be tested the moment you have a colicky baby. )
Enjoy the anticipation and my best wishes for a safe delivery!
outnfree