But pragmatism won't do. It is serviceable only when linked to an adequate theology. It cannot stand on its own. Abortion is wrong because it is the intentional killing of another human being. It is murder under the sixth commandment.
Intention is an important element in murder.
A tool known to kill, such as a curette or a prostaglandin, is another important element. Neither of these elements are normally present in the case of a newborn with cocaine in his blood. The majority of newborns exposed to illicit drugs are not measurably damaged because of the exposure. One of the reasons that physicians do blood tests on newborns is because the infants do not normally come out of the womb seizing or with other gross and evident problems. For most, it takes a blood test to tell.