It is not normal for the period to advance by 10 days after taking the Prolonged Pill, because the Prolonged Pill itself has the effect of regulating menstruation, and it is coincidental that it leads to early menstruation when taking the Prolonged Pill, which has nothing to do with taking the Prolonged Pill orally, and in the clinic, the most common reason is that the luteal insufficiency leads to the luteal atrophy in advance, which will make the menstruation advance. If you have not done gynecological examination and ultrasound examination, it is recommended to go to the hospital to do these two examinations, the main purpose is to exclude endometrial lesions, exclude endometrial polyps or uterine fibroids, for example, submucosal uterine fibroids or interstitial fibroids, which may lead to shortening of the menstrual cycle phenomenon, so it is recommended to give the examination, and according to the results of the corresponding treatment, it is best to give the pill under the guidance of the doctor and then give medication. It is best to take the medication under a doctor’s supervision.