Menstruation delayed 10 days with a pregnancy test stick test is a bar, which indicates that there is no pregnancy, there may be an early stage of pregnancy or ectopic pregnancy HCG value is low, the pregnancy test stick can not be detected, you can go to the hospital to take a blood test of blood HCG value, this method is the most accurate. You can also continue to observe and retest the urine HCG value every 3 days until you get your period. There are many reasons for delayed menstruation, such as mental depression, nervousness and anxiety, environmental changes, overwork, emotional changes, cold or weight loss and dieting, strenuous exercise can cause delayed menstruation. You can have an ultrasound to see the thickness of the uterine lining. If the lining is thicker, you can continue to observe it, indicating that you will have your period in the near future. If the lining of the uterus is thin, you can take progesterone to encourage menstruation. Progesterone capsules should be taken orally, 100mg twice a day for 5 days, and menstruation will usually occur within 3-5 days after stopping the medication.