Most people will get their period after 3-5 days of stopping taking Didrogestrel tablets, and no later than 10 days. Due to the sudden discontinuation of the medication, the endometrium loses its hormonal protection and shedding occurs. If the patient still has no menstrual flow after 10 days of discontinuation, it is suspected that there is something wrong with the endometrium of the patient, because the menstrual flow of women is the shedding of the endometrium, and if the endometrium is too thin, there will be no menstrual flow. If the endometrium is too thin, there will be no menstrual flow. In addition, it is also suspected that the patient is pregnant, as the pregnant corpuscles will continue to secrete progesterone and there will be no menstrual flow. Therefore, if there is no menstrual flow for 10 days after stopping the medication, you need to go to the hospital for examination.