If there is a period between the fetus cells being created and it being old enough to be covered by personhood, it seems obvious to me that harming the natural

If there is a period between the fetus cells being created and it being old enough to be covered by personhood, it seems obvious to me that harming the natural growth of the fetus should carry a punishment, at least on behalf of the mother who wanted to raise the child. That doesn't mean its murder.