Cheapest date ever . Done <| sep |> Except if you have someone in on life support with a 5050 shot to make a full recovery , it would be at best homicide to pull the plug . But a person on life support isn ' t the same as a fetus before 28 w e eksdoesconsciousnessarise on life support . A person has a consciousness and a will of its own . A fetus was never even conscious to have a will of its own in the first place . We certainly cannot allow current technology to define the human person . No , the only meaningful criterion I can find is the development of consciousness . The above tangent about technology , life support , etc . was only in response to your query about 22 week old premature deliveries . children born at 28 weeks were non human ? Not persons , if that ' s what you mean by human . Has the human person substantively changed such that those infants are now considered people ? Oh yes . The ability to experience pain and suffering , and whether you ' re conscious and thinking and can have even a rudimentary will of your own makes all the difference in the question of whether pain and suffering can justly be inflicted on you , whether you can experience harm , etc .