My mother ordered the same book for the Princeling she used to read to me when she was pregnant with Mr. Funny:

I'm so old that the book has nurses listening to the fetal heartbeat with a stethoscope and the father isn't allowed into the delivery room. But I think the Princeling gets the gist of it: There's a baby a-comin', and things are gonna change, and he's going to feel lots of different things about it.