It should go without saying but it doesn't. There are people who try to act like men and woman are identical, which is silly. In my opinion the abortion problem would be a lot easier if people weren't so stupid.
People need realize what they are doing. If you abort a baby, yes you are killing it. In my opinion I think if you are stupid enough to get pregnant then you should live with your mistake. You have no one to blame but yourself, and you as an adult you need to deal with the consequences of your actions. That said I do believe some times it may be ok. For example, if you got raped and got pregnant and it would make your life horrible, then maybe its acceptable. Its not really my place to judge that.
As for when a baby is a live, techincally at the point it can react to outside stimulus or becomes aware of its surroundings then its alive.