Stop at this point. First, human life is determined by adults. Very young human life includes fresh skin calls after division. They obviously can not make decisions, but can, with the help of some scientists become adult humans and then at that point they can make decisions.
"You are begging the question of what human life "
The question isn't, "what is human life?" The question is "what is a person?" Personhood is determined by those who have reached the age of reason. ie. adults
You seem to have the position that only your ideas or position matters. A growing majority of adults disagree with you. Thank God, enough babies have been murdered
1) It is not about a woman's body. From the moment of conception when a never-before-seen DNA is created it is about a second body--heart, blood, brain, limbs all separate from hers.
2) It is indeed about life and not about your definition of "personhood." The law of our land from the outset, as our Declaration of Independence from the British crown states most succinctly, is "that we are endowed by our Creator with certain unalienable rights, that among these are life...."
The 5th Amendment to our Constitution states that "no person shall be deprived of life...without due process of law." Abortion is the depriving of life, no matter when it is performed.
3) Methinks thou dost protest too much. Are you suffering from a past abortion decision yourself, a choice that you need to come to grips with?