A baby in the womb is not part of the mother’s body. The baby’s body belongs to the baby while it is in the mother’s womb.
The mother’s body sustains the baby’s body with nutrients and a protective environment, but the 2 bodies are nevertheless distinct. Abortion is not just an operation on the mother’s body but also the killing of another human being that is within her body.
People try to rationalize that it’s ok to have an abortion.
Psalm 139: 13-15