If your period has been delayed for 7 days, you need to take a blood test to check the blood HCG value to rule out pregnancy as the cause. If the blood HCG value rises, then it suggests pregnancy. If the patient has fertility requirements, it is necessary to further check the progesterone to understand the luteal function, if the progesterone is low, it is necessary to supplement the progesterone treatment. If the patient does not have fertility requirements, need to check the gynecological ultrasound, according to the ultrasound situation to determine the next step of treatment. If the menstruation has been delayed for 7 days and the HCG value has not risen, in this case, it is considered to be caused by menstrual disorders, and can be temporarily observed; if the observation is more than 10 days and no menstruation, in this case, it can be considered that the progesterone withdrawing bleeding treatment.