Tell me: if your mother had aborted her fertilized egg the next day, where would you be today?
The motives for some actions are obviously political and not based on logic. Of course this tiny collection of cells is not a "person." Pro-lifers are taking this ridiculous position only because it will sidestep the current law legalizing abortions, not because it makes any sense.
Not until it breathes on its own. Until then its just a seed. Like an acorn on the tree