This thread is cracking me up. Mostly KSig and hearing about the mom of half-related triplets!
And I hope whoever mentioned "high schoo" kids DIDN'T make a typo... that made me smile too.
OH -- I wanted to add that some women get pregnant even though they're taking their pill correctly -- either they're part of the point zero zero whatever failure rater or they took some medicine (antibiotics, whatever) that messed with the reliability of the pill.
I kinda question the idea of being pregnant and not knowing it, though.