Some people who do not have periods also have normal ovulation. Whether or not ovulation can occur is related to the hormone level in the body. During puberty, the unstable hormone level in the body can easily cause delayed periods and menstrual disorders, but ovulation can occur. Irregular menstruation can also occur during the postpartum period when breastfeeding, and menstruation can be restored early or late after delivery, but ovulation can be restored in one month after delivery. However, some diseases may affect ovulation, such as endocrine disorders, polycystic ovaries, abnormal ovarian function, etc., which can cause menstrual disorders and lead to non-ovulation. If you are not getting your period, you need to go to the hospital for an ultrasound to see how the follicles are developing, or you can use ovulation test strips to monitor them. If the menstrual disorders are caused by endocrine disorders, polycystic ovaries, etc., they can be treated with Da-Ying-35 under the guidance of a doctor, and ovulation-promoting drugs can also be used.