It turns out if you want babies really bad, you may have to settle for ugly ones. A new study claims that you're more likely to get knocked up by an unattractive man than if you hop in the sack with someone reasonably attractive.

It has to do with sperm load (heh) -- if one assumes that ugly guys get laid less often, delivering the most massive quantity of baby batter they can muster would have an evolutionary benefit.

It works both ways though -- maybe you're not getting pregnant because you're busted. Certain species involuntarily regulate their sperm based on desirability of their partners and a number of other factors.

As if we didn't have enough crap to worry about, it seems even our gonads are shallow. We hope sperm can tell if a girl has a great personality.