In my opinion The fetus is a person, but it is neither conscious or has sensations. In order to develop these faculties it must be born, and even then these faculties are very limited. Since the fetus is a person who is unaware, it has no preference to life or death, because it is not even aware it exists. So since no preference exists from the perspective of the fetus, the decision is up to that of the mother. Think of it this way, imagine killing someone in their sleep except the person has never been awake to form beliefs et cetera. Killing them makes no difference to the 'sleeping beauty' because they do not even realize they are alive, so likewise we should be able to kill the fetus. In short if a fetus is a person it does not have any of the qualities we normally look for in a person, therefore, it does not need the same consideration as conscious, self aware, feeling people. what do you think ?