Life is a most precious gift from God. Without it everything else would not be possible. The child that is conceived loses his/her life because the mother's choice, rights, and convenience are considered more important,
"Your eyes even saw me as an embryo;
All its parts were written in your book
Regarding the days when they were formed,
Before any of them existed." Psalm 139:16
David acknowledged that this embryo that was in his mother's womb was HIM. Just because you cannot easily see the person in that stage of life, does not mean that he/she was not a PERSON, with all of the potential of a person.
The Law given to the Israelites stated that if an unborn child dies as a result of the actions of someone, that child's life must be avenged "life for life" Christians are not under that law, but it does let us know how the God who gave us life feels about the life of that person.
So, in view of these things, yes, it is morally wrong. If the mother's life is in certain danger and the unborn child cannot otherwise live, that child's life is already in danger and could be removed from her body so that her life can continue.