I respect your opinion. You have made some good points. But how could you say an unborn baby is not human? It has human DNA, which is also different from its mother's. On a cellular level it's a human. Also what would you call a premature baby? It's still human isn't it? So if a baby is not born yet it is not human?
Danoff worded it better than me.
It's analytically human, if you're going by it's DNA. It's not
a human, in terms of being a person with associated rights, any more than a person with catastrophic brain damage stuck in a permanent coma and being kept alive by machines is.
We don't just hand out rights to anyone with human DNA, as shown by the examples of all the people who have had their rights deliberately taken away. We hand out rights to people who can function as people (I suspect "people" may be a better word to try and make the distinction I'm trying to make).
So yes, a foetus is human. No, it's not a "person".
As someone said earlier, moral rights don't really start until the baby is self-aware, conscious and at least moderately independent, which is way, way, way after birth. Cute as they are, babies are little eating and pooping machines that if not continuously maintained tend to die pretty quickly for a good wee while after they pop out. To be on the safe side, most people just draw the line at birth because that's an easily definable moment that is always before the baby requires moral rights.
So correcting my earlier misspeaking, no, a premature baby is not a person either. Human, yes. Person, no. We grant them rights at that point for the same reason we grant other babies rights at birth, because it's convenient.
There's a parallel to abortion in the way animals are treated. A good person looks after an animal if possible, because it's the kind thing to do (and they're cute little buggers). But if it's suffering, or if it can't be kept properly, then the decent thing to do is put your animal down. It's not pleasant, but it's the right thing if an animal can't be given a real home for whatever reason.
I don't see why that same logic doesn't apply to humans. If you can't or won't give your foetus a real home and proper care after it's born, you shouldn't have it and you shouldn't be forced to have it. People tend to be a bit squeamish about bopping babies on the head after they're born like we do with puppies and kittens, so they do it early on before the baby is quite so adorable. Understandable.