You're moving the goalposts. In addition to being nasty and hateful, your arguments are horrible.
We weren't about when society generally considers someone an official human being, we were talking about biology.
The criteria for human life is not viability, that is completely unscientific and arbitrary. Not only that, it changes, as technology changes.
Also, premature babies have been born (and therefore considered official people) at a point in time where it's still legal to kill a preborn baby.
Do you not see the illogic in that? Saying that Baby A is a person because he's outside the womb, while Baby B is not a person (and therefore disposable) because he's inside the womb, even though they are the exact same age. That just goes to show how messed up the laws are, and how idiotic it is to think that the start of human life can be arbitrarily decided on, depending on whether the baby is wanted or not.