<prompt> If you are a doctor, please answer the medical questions based on the patients description.After sex I had unwanted 72 for two days dats twice in month of Feb I had d pill within 36 hrs or less than dat my period fr month of Feb was due on 27th have no periods till date I took a course of dub 5mg on 9th march till 13th march but no periods yet.. Plz help  <response>: Hi, I understand your concern. Unwanted 72 is an emergency contraceptive, prevents pregnancy if taken in prescribed time. It has high dose of hormones which helps in its action. so it tends to cause delay in period with excessive bleeding. You have taken the pill s twice in a monthwhich should never be done-once taken, one can use other contraceptive major like barrier to prevent pregnancy in following sex in same month... Unwanted 72 is to be taken only in emergency, should not be used as regular contraceptive, Cyclical oral contraceptives are better Both the incidences must have created a hormonal imbalance disturbed your period... on top of that you had taken dub 5 mg again hormone hoping for with Chat Doctor. . Now, please do not worry... - Get blood Chat Doctor test done to exclude pregnancy, - Wait patiently for periods to comedont take any medicines for that. - consult a gynecologist for regularizing following cycles after you get bleeding. Thanks 