Actually it has much more to do with the fact that the innocent life has the right to be alive.
Even if it does, does that give it the ability to take away the right of the woman carrying it to control her own body? (
I don't believe it does.)
After all, there are
two humans directly involved in a pregnancy (plus a third at the beginning). Shouldn't
both of them be considered?
Even if the unborn human has a right to be alive, the pregnant woman still retains her right to control her own body, a right which I believe includes the ability to deny use of her body to anyone and demand their immediate removal from her body.
Until medical viability, there is no way to immediately remove an unborn human from a pregnant woman's body without resulting in its death. When there is an
immediate alternative to abortion (like artificial wombs and/or fetal transplant surgery), then I will agree with you that abortion is only needed when the life of the pregnant woman is severely threatened.
But, until there is an
immediate alternative that doesn't result in the death of the unborn human, I do not feel it is ethical to make abortion illegal. Making abortion illegal at this point in time takes away rights from pregnant women.