hello, There are several reason of irregular period like hormonal imbalance, mental stress, over weight/ extreme loss, emotional upset, irregular diet habit, high prolactin level etc. Poly cystic ovarian disease and thyroid disturbance should be ruled out. You must undergo one pelvic ultrasound scan and hormone test to pinpoint the diagnosis. You may require regular combined pill and other supportive medication to regularize period. Kindly, consult with your gynecologist and take suggestive advice accordingly. You should control body wt, avoid stress, take healthy low carbohydrate diet with avoidance of fatty food and sleep properly. Be well.