Infertility is not a simple illness, it's a complex of problems for the couple, their family, friends and society. In my country, there are not scientific evaluations for the level of infertility in the general population. So, this study aimed to give a small contribution for the epidemiology of the infertile Albanian couples who underwent to In Vitro Fertilization, causes of their infertility, protocols of stimulation, evaluations of the factors related to the pregnancy, correlations between them, percentage of the pregnancy, confronting with the literature etc. It's a modest book prepared with reliability and love. I humbly hope to be helpful to everyone who can be interested.