Have you ever wondered if someone died in order for you to be born?

What I mean is, do you think that perhaps a alternate version of you (or someone else in a parallel dimension) died so you could be born in this life? Do you think it's possible that life can't be given to someone unless someone else gives up theirs? I know this may sound crazy but think about it: what if the only reason we're truly here is because of the sacrifices made by our past-life selves or someone in our past life (besides being concieved and given birth to I mean)? I'm not saying this to make people feel bad rather I'm asking this in the case that that's why we should value our lives more and love them (In other words, think of Life as a gift from their sacrifices to us). Maybe of all this is just a lesson that our past-selves or someone else in a previous life wanted to teach us not to take our lives for granted. Maybe it's that whole "Equivalent Exchange" thing going on where "In order to obtain something, something of equal value must be lost". You know, that's probably the exact thing that's going on in life as well other lives out there in different multi-verses.