Some of your agruments here are utterly ridiculous. By some of your definitions, human life occurs when the egg is still in the womans body and thus her menstrual cycle every month must be murder, is it not?! That egg was a POTENTIAL life! Just because it happened to not encounter a sperm on its way out does not make it any less a life, right? Give me a break.
A fetus becomes a human when it's umbilical cord is cut from its mother's body. Plain and simple. Until that point, it is attached to her, it is her body, and she chooses what to do with it. Religion and government have no place in a woman's uterus, and neither does a man for that matter. You fellas are lucky enough we let you rent space in our vaginas once and a while, let's not get greedy here.
I think men need to think long and hard about how THEY would react if the roles were reversed and life altering decisions about their bodies were made for them by moronic third parties. I realize there are also pro-life women out there, well...they are just stupid.
Oh, and by the way, being pro-choice does not make someone pro-death. I am pro-responsible decision making, and that includes plan B and/or abortion when necessary.
For those of you wondering, I am a pharmacist. The number of people that I see on a daily basis who should NOT be procreating is staggering not to mention frightening. All I can say is, thank god (see He does have a place in this argument!) there are options.