I found out recently that the circumstances of my birth were a very near thing. My parents' 4th child was born in 1978. At some point between then and 1983--I never asked them for the date--they decided to have a 5th child, at which point they most likely would've stopped. That particular attempt was halted by a miscarriage. Eventually they tried again, I was born in 1984, and the rest is history. I'm thankful they had me, of course. Still, the fact that if it weren't for that miscarriage I would never have existed... ...it's sobering to think about.