To an extent I can empathize with the argument that a person should be able to do what they want with, or make use of, their body in the manner they see fit. Even in areas like drug use or prostitution I think a legitimate argument on those lines could be made. When the use of the body involves direct physical harm or even the death of another person we need to have limits though. That argument doesn't hold much weight when it comes to abortion. It's on par with an argument like this: "If I want to ball my hand up into a fist and swing it forward really hard over and over when another person is standing in front of me then that is my right.... don't tell me what I can or can not do with MY fist, MY body."