Birth Control/Postinor 2


Hi. I had my last period on 15 Nov. So on the 23th Nov, I had protected sex using postinor 2. A week later, I started bleeding for 4 days and most of the pads are half soaked. Does that mean the pill is effective of prevent my pregnancy ? My December period is due on 16th December but I haven't had my menses nor felt any symptoms such as breast tender, abdomal pain and so forth. Will my period delay to next month?
I have been stressing for sometime about this so would this be the cause of my period being delayed ?

It's not unusual to have irregular bleeding after taking emergency contraception, which can also cause the next period to be early or late.  Whether there is irregular bleeding doesn't have anything to do with the effectiveness of the postinor 2.  Stress can also be a cause for missing a period.  I suspect that your late period is from the emergency contraception or stress.  If you feel any symptoms of pregnancy, I would do a pregnancy test.  Otherwise, your period will likely come sooner or later.

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Norman Solberg


I am an OB-GYN physician. I can answer almost any question related to women's health.


35 years in an active OB-GYN practice.

Fellow, American College of Obstetrics and Gynecology

MD OB-GYN specialist

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