Women with delayed menstruation and irritability are considered to have premenstrual syndrome. Before the onset of menstruation, hormonal changes in the body can easily cause irritability, excessive nervousness, breast tenderness and abdominal swelling. This symptom will disappear after the menstrual flow, so don’t worry too much. If you have sex without contraception, there is a possibility of pregnancy. If you are worried that you are pregnant when your period is delayed, you may have symptoms of irritability. Frequent use of birth control pills can also cause hormonal changes in the body, which can easily cause delayed menstruation leading to irritability. If your period is delayed, you can go to the hospital for an early pregnancy test. After determining pregnancy, you need to take rest and relax so as not to affect the baby’s development. If you are not pregnant, you can use progesterone to promote menstruation. It is best to eat more vegetables and fruits, and you can use glutathione and prolotherapy pills to regulate the symptoms when they are serious.