A fully grown baby at 9 months old, 1 second from birth is also called a fetus. If you kill that fetus, you can argue all you want that it isn't killing a baby. But I would call that murder. To my mind, the abortion case is altogether different from the man/woman argument because for me, sex is binary because it is about chromosomes. Contrastingly, a fetus/baby distinction is physically on a continuum, even if semantically it is not.