When she starts to swell up with your baby, make sure no change goes unnoticed. When her nipples get dark and thick, when that little belly appears and starts to become noticeable under her t-shirts, every new pound and stretchmark should be pointed out to her. Never let her forget what’s happening, that she’s growing nice and big with a baby, your baby. When she really starts to grow, have her put back on whatever sexy little number she was wearing when you first knocked her up to show her just how much that tight little body has been changed. And most importantly, make sure she knows she’s never going to be little again.