The expectation of a child represents a major turning point in the life of future parents as well as in the lives of their surroundings. The goal of this paper is to investigate and summarize in the paper itself the process in human lives that takes place during the coexistence of partners without a child, when thinking about and preparing for potential parenthood, and at the very end during the birth of a child. Partner relationships are influenced by numerous factors, individual, environmental, family, etc., which together affect mutual relationships, and later on the motivation to have one's own children and family. During the period of pregnancy, there is a visible decrease in satisfaction in the relationship, which is influenced by psychological stress, exhaustion, fatigue, lack of time, etc. A decrease in satisfaction is also a characteristic of unplanned pregnancies, which are at a greater risk due to inadequate preparation and care. The period after the birth of a child is especially sensitive for mothers who may develop baby-blues syndrome or postpartum depression. Although the experiences are individual, a general characteristic is the decline in relationship satisfaction as a result of lack of time, child care and numerous other factors.