You see a woman as an incubator of a "child" that has a right to life. This is biologically wrong and the fact that so many people share this view is an indictment of America's failed education system.
Even serious pro-choice scholars concede that a fetus is biologically a human life e.g., Peter Singer. If your argument is that a child is definitional not unborn then that is a semantic argument of no moral relevance.