A historical review of development of emergency contraception shows that it is progressing exponentially. Likewise, as development increases, availability is increasing too, to the extent that certain forms of oral emergency contraception, in some countries, are listed as OTC medicines. However, it is necessary to note that, although availability is increasing, public awareness of all the mechanisms of action of these pills is not. Even though there is a lack of researches which would prove the correct course of action, bringing down the mechanism of three most significant oral emergency contraceptives - levonorgestrel, ulirpistal acetate and RU 486, only on the inhibition of ovulation is deceiving of the patients, contrary to the medical and pharmaceutical profession, because it is incompetent and unscientific. This scientific work processed available studies that point an important fact - mechanism of action of all three pills primarily depends on time of application after intercourse, the period of the menstrual cycle in which the woman was located during intercourse and when applying emergency contraception. Thus, there is the possibility, using emergency contraception, particularly in the luteal phase, of their effect on the endometrium of the uterus, either directly or via factors important for an implant, which prevents further development of the embryo. Aware of the potential lethal consequences of this kind of action to conceived life, some have tried to justify the use of oral emergency contraception by redefining the term of pregnancy (it would, according to them, start only when the embryo is implanted), negating the personality of the embryo by introducing the term of an pre-embryo as not human being, or pointing out that they can do what they want with it, like use for research purposes, and to kill, because the absence of consciousness, as the basis for determining person. But, despite the many manipulations, human life, today and always starts with uniting an egg cell and a sperm cell. Therefore, any prevention of development of already conceived human life, including oral emergency contraception, which most often happens by inhibiting implantation, is considered abortive act. Unfortunately, thereby prescribing and selling of such, a possible abortion formulation, means the participation in the same act. However, every pharmacist who expertly evaluets that administration of emergency contraception could endanger the user's health, is required to withhold it, according to the explicit provision of Article 24, line 1 of the Statue of Pharmacy, and not direct the patient to another pharmacist. However, if pharmacist withholds it by conscience, not wanting to administrate abortive formulation, can not and must not be forced either to administrate it, either to refer them to the one that would administrate it, for thus indirectly participates in abortion act. Therefore, instead of a conclusion let it be an expression of hope for the whole truth about emergency contraception and acceptance of that truth, according to the respect of human life, and an expression of longing with St. John Paul II.: I make this most urgent appeal, that together we may offer this world of ours new signs of hope, and work to ensure that justice and solidarity will increase and that a new culture of human life will be affirmed, for the building of an authentic civilization of truth and love (John Paul II., 1997).