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How Effective Is Emergency Contraceptive Pill Plan B ?

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Posted on Mon, 1 Sep 2014
Question: so I was just wondering how plan b works ? what chance do I have of it failing it was taken in time frame that said on box (about 4 hours after accident ) how will I know if it didn't work I am supposed to bleed right after?? I had cramping , no bleeding, now my period is late. note plan b was used due to the fact I just started birth control, about 2 months ago. just to be safe.
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Answered by Dr. Dr. Ivan Romich (1 hour later)
Brief Answer:
Hi and welcome to HCM

Detailed Answer:
If you were on birth control pills and took Plan B within 72 hours after intercourse, then possiblity of pregnancy is negligible. Plan B is very effective almost 99%. But since your are on birth control pills, this was not neccesary at all and period irregularity is expected since you took significant dose of syntetic hormons. There is no rule about bleeding after Plan b intake. Some women experience excessive bleeding and some dot have it all. Both scenarios arent related to pregnancy risk. So just dont worry, your period will come, try to us only birth control pills in future.
WIsh you good health. Regards

Note: Revert back with your gynae reports to get a clear medical analysis by our expert Gynecologic Oncologist. Click here.
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Dr. Dr. Ivan Romich

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Practicing since :2008

Answered : 13887 Questions

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How Effective Is Emergency Contraceptive Pill Plan B ?

Brief Answer: Hi and welcome to HCM Detailed Answer: If you were on birth control pills and took Plan B within 72 hours after intercourse, then possiblity of pregnancy is negligible. Plan B is very effective almost 99%. But since your are on birth control pills, this was not neccesary at all and period irregularity is expected since you took significant dose of syntetic hormons. There is no rule about bleeding after Plan b intake. Some women experience excessive bleeding and some dot have it all. Both scenarios arent related to pregnancy risk. So just dont worry, your period will come, try to us only birth control pills in future. WIsh you good health. Regards