"Life begins at conception. To prevent implantation is to kill an innocent human being.
Wrong, and wrong. Don't flaunt your ignorance."
You have a moral duty to be better informed than that. Shame on you.
Of course life begins at conception. There is no coherent argument for any other position.
Such rigid thinking is exactly whow the extreme Pro-Lifers attempt to hijack the Plan B debate as another form of abortion.
To say there is "no coherent argument for any other position" demonstrates your lack of intelligence and imagination. There is ALWAYS a coherent argument for a different point of view.
In this particular area of discussion, I'll ask you when does the life of a twin begin? Would you say an undivided zygote has two lives in it? I would say no. What about when a zygote separates and then reforms into one? Is that two lives that then merge into one? Again, I would say no.
The way I see it, which is simply my humble opinion, is that a living human being cannot divide itself in two, therefore a zygote is not a living human being - merely the chemicals needed to develop into one. Once it develops into an organism with human characteristics, then it is a living human being.