The medical science has this kind of anovulatory menstruation, so the absence of ovulation will be menstrual. Non-ovulatory menstruation is usually common in polycystic ovary syndrome, or abnormal hormone levels secreted by the ovaries, where the level of secreted estrogen does not reach the normal value, which also results in menstruation with low menstrual volume and no ovulatory menstruation. Therefore, if you are not ovulating, you must go to the hospital on the second to fifth day of your menstruation to have your blood drawn on an empty stomach for a sex hormone test, which is called an endocrine test. Generally, if you are not ovulating when you get your period, it usually indicates an endocrine abnormality, so you must do an endocrine test and then, according to the endocrine test results, you can adjust the symptoms, so that your hormone levels are normal, you will have normal ovulation and normal menstruation, so a period without ovulation will affect your fertility. No ovulation will also have menstruation, so you have to adjust the symptoms according to the endocrine test results, no ovulation will also have menstruation.