Hello dear I understand your concern Your menstrual irregularities is due to hormonal imbalance. But pregnancy can be rule out as you had sexual intercourse. I would suggest to consult the gynecologist and undergo blood HCG, reproductive hormone analysis, USG scan and ovarian follicle study to rule out cause. PCOS can be treated by the Birth control pill or progesterone pill: to regularize the hormone imbalance Tablet metformin: to decrease insulin resistance Other treatment will depend on the test result Avoid stress, take healthy diet, avoid excessive sweet, do regular exercise and reduce 10-12% body weight if you are obese Hope this may help you Contact HCM for further query Best regards Dr. Sagar