Excluding cases of rape, the woman exercises any right to choose in causing conception initially. Afterward, even if a woman has a right to her body and to "choice", this right is overridden by the fetus's right to life. And, what could be more important than life? All other rights, including the mother's right to choice, surely stem from a prior right to life; if you have no right to any life, then how do you have a right to an autonomous one? The woman may ordinarily have a reasonable right to control her own body, but this does not confer on her the entirely separate (and insupportable) right to decide whether another human lives or dies.