Framed carefully, the issue is not whether a fetal human possesses a broad, independent right to use another person’s body, as if pregnancy were equivalent to compelled organ donation. Rather, the moral question turns on what options are actually available in pregnancy. In ordinary emergencies, people may refuse to use their bodies to help others, and if someone dies, the cause of death is their prior condition—not an intentional act of killing. Pregnancy is morally distinct because there is no third option where one can simply “refuse assistance” and allow the dependent person to die from something else. The only alternatives are continuing bodily support or intentionally ending a life.
When the only way to avoid providing bodily aid is to directly and intentionally kill an innocent person, the moral rule shifts. The obligation that arises is not a general duty to make bodily sacrifices for others, but the more basic prohibition against killing innocent human beings. Outside of rare exceptions such as genuine self-defense, intentionally killing an innocent person is wrong. Applied to pregnancy, abortion is impermissible on this reasoning because it is not mere non-assistance; it is intentional killing.
Key Takeaways
When the only alternatives are helping with one’s body or intentionally killing an innocent person, morality requires help rather than killing.
Pregnancy is unlike organ donation or rescue cases because there is no option to withdraw aid without directly causing death.
The moral duty in pregnancy arises from the prohibition on killing, not from a claim that others generally have a right to one’s body.
Abortion is impermissible under this framework because it intentionally ends an innocent human life rather than merely allowing death to occur.