I have figured out why the Ineffable Tao gives pregnant women mood swings on top of all our other symptoms & side effects: so that our partners can experience the joys of pregnancy vicariously. Nothing can replicate three straight months of nausea, but my husband can get that queasy feeling just watching me threaten to have a thermonuclear meltdown because the mashed potatoes turned out less well than expected. Nature is full of such wonders.