The fetus is a human. You can find it on the first site Lucy posted. The argument of personhood is unconvincing to me for several reasons. If a someone became a person at some specific time t and wasn't before, would it be right to kill that someone at t-1? The argument of physical dependance also does not work because people who are in a coma with lifesupport are less physically capable than a fetus. So I'm not really arguing the potentional human being, a fetus is human being abate undeveloped completely.If you are arguing about the 'potential' to be human, then by that argument christian women should have sex everytime they see a guy. After all, every time you abstain, you kill a child.