Menstrual irregularity simply indicates that ovulation is abnormal, and it does not necessarily mean that there is no ovulation. If ovulation occurs, there is a possibility of pregnancy. Therefore, having irregular periods does not mean pregnancy is impossible, although the chances of conception may be lower. Normally, a woman ovulates once within a month, but if her periods are irregular, it is difficult to pinpoint when ovulation occurs. Generally, about 14 days after ovulation, a normal menstrual period should occur. If there is an extended absence of menstruation, it usually suggests that ovulation has not occurred. If there is a desire for childbirth, treatment to regulate menstruation and promote ovulation may be necessary, as it would be quite difficult to conceive otherwise.