Cranberry capsules are a health product that contains a certain amount of estrogen, which will not cause delayed menstruation. Delayed menstruation may be caused by environmental stress, mental factors, including changes in endocrine hormones, and may not necessarily be caused by cranberry capsules. If you are sure that you are not pregnant, you can observe it for 3-7 days. It is normal to have your period within 40 days, and it is normal to delay it for 7-10 days, and an occasional delay will not affect your health. However, if you have not had your period for more than 40 days, you should go to the hospital for an ultrasound examination to determine the thickness of the endometrium and decide if you want to take oral medication to promote menstruation.