In cases where Emergency Contraception [sic] has an effect, it acts 57% of the time, not by preventing ovulation, but by preventing implantation [thus killing a human being].
Proponents of "emergency contraception," as well as the Preven and Plan B websites, contend that emergency contraception does not cause abortion. They argue that emergency contraception prevents pregnancy and thereby reduces the need for induced abortion. However, they intentionally define the term "pregnancy" as implantation of a fertilized egg in the lining of a woman's uterus, as opposed to "pregnancy" beginning at fertilization.
Whether one understands pregnancy as beginning at "implantation" or "fertilization," the heart of the matter is when human life begins. Embryological science has clearly determined that human life begins at fertilization - the fusion of an egg and sperm immediately resulting in a new, genetically distinct human being. This is not a subjective opinion, but an objective scientific fact. Accordingly, any artificial action that works to destroy a fertilized egg (human embryo) is abortifacient in nature.
See http://www.all.org/article.php?id=10325 and http://www.all.org/article.php?id=10125
The common description of the MAP as emergency "contraception" fails to accurately describe its possible abortifacient action and is misleading the public. The confusion is aggravated by attempts to re-define pregnancy as occurring after implantation. Potential users of MAP are not told that this drug may abort an established pregnancy. This is not informed consent.