Having never lived with a preggo, for those who know better please forgive the part of this post that is obvious ignorance. (This would be the clue to stop reading altogether for some of you.)
I don't think HP's post is hormonal at all. It seems to me that she's handling herself extremely rationally at 8.5 months pregnant. She expressed two points that make Mr. HP a total jerk for ignoring, in my book.
1. I NEED SEX TO FEEL CLOSE TO YOU - What's not to act on with that one? Who cares if he understands why she's that way? She says that's the way it is, so f**k her, for goodness' sake!
2. Sex is the only thing that eases my (her) physical discomfort of the pregnancy - Again, what's to understand? It's the same as requesting a foot rub, except he gets more fun from it.