Pregnancy has a lot of unpleasant symptoms. I've experienced a wide array of the normal ones, and a few of the abnormal ones. The normal ones were your standard nausea, exhaustion, aversions to certain food, assorted back pains, etc.
One of the more disconcerting side effects is perhaps best illustrated by this Austin Powers clip, "Who does number 2 work for?" I think of it regularly. Actually, not as regularly as I'd like. More like every other day. If I'm lucky.