Yeah, theres that, and theres where they are at in their head too I guess. If you are full of lovely lovey hormones after the birth, you're going to feel better than if you don't. I also had other emotional stuff happening, like losing my grandfather the day I went into labour. That whole time kind of sucked, I didn't start enjoying being a mum or feel any lovey hormones for a few weeks.
I thin that makes a huge difference too?