I am so glad Christie and I were going to the gym when she got pregnant. After one month, we've both got knots in our backs from jiggling the baby to sleep, and my foot is acting up again from walking in circles. I can't imagine how out of shape people do this.
On the bright side, I'm finding that the sympathy weight gain by the male partners of pregnant women is adaptive. I'm losing weight faster than I was when we were counting calories and going to the gym 5 times a week. I've already lost 5 pounds since Chipmunk was born.