On the one hand, a fetus isn't quite a person. It has very little intelligence or personality, and no existence independent of its mother, to the point where I am comfortable using the pronoun "it" to describe one. On the other hand, as little as it is, it still represents a human life, and I consider preservation of human life a terminal goal as opposed to the intermediate goal that is personal freedom.

Well, I suppose the question is if it count as a human being. It's not conscious on the level of an adult human at all. I don't have much knowledge of the science of it, but it's below the level of an animal for a good amount of time. Perhaps after birth as well so far as I know, but that's a whole different can of worms. It grows into becoming a human being, but there's a definite stretch of time where it isn't.