Health-behaviors of women during pregnancy period are the most important determinant of mother and infant health during prenatal and antenatal period. Health-behaviors in pregnancy may be defined as the activities that cover both the pregnant woman and fetus’s health and infant’s health and affect the course and result of the pregnancy. Perceptions of the pregnant women about pregnancy are one of the significant factors that affect their health-behaviors during pregnancy. A pregnancy that takes place at an wanted time or unwanted time affects women’s reactions against pregnancy. Unwillingness and neglects for the pregnancy process may jeopardize the health of mothers and infants. Prevention of the problems caused by the unwanted pregnancies is very important for women and children’s health.