Hello dear Understand your concern. If period is delayed, it may be pregnancy symptoms if you have unprotected sexual intercourse You should check by urine pregnancy kit , 10 days after missed normal period date. Other causes may be Premenstrual syndrome Hormonal imbalance Excessive stress, excessive weigh loss or gain, sudden change in life style, endometriosis, ovarian cyst, endometrial dysplasia, thyroid problem. Drugs like OCP. Take following advice: For pain: Take tablet Meftal Spas Two times a day for 3-4 days. Do regular walking and exercise. Eat healthy diet Proper rest Drink lots of fluid Avoid alcohol, smoking and caffeine Relaxation exercise Avoid stress If period will not come , consult the gynecologist and do proper lab test to diagnose above causes Also note that Menstruation required co ordinate action of various hormone that secreted by ovary (estrogen and progesterone) and brain (FSH and LH). If any above hormone is decreased or increased there is imbalance in menstruation. So please do full hormonal profile : Estrogen, progestron, LH, FSH, HCG and thyroid hormone. Also USG, ENDOMETRIAL biopsy,PAP smear That help to diagnose hormonal imbalance. After confirmation you can take treatment according So please go ahead. Hope this may help you All the best. Stay healthy. Best regards Dr. Sagar