This is not abortion, it is birth control. My wife an I have two children. It would have been possible to have many more however, we choose to prevent that from happening. I do not think we age guilty of abortion.
The Pill can destroy human life after conception and so can Plan B. I emphaszie can, it doesn't in all cases.
Its about the sanctity of human life and that's why the Catholic Church is against "the Pill." Because there is the chance that human life can be destroyed after conception.
Planned Parenthood has always loved to call abortion "birth control" and that line doesn't hold water in this debate.