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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Delayed Period, Sore Breasts And Headaches After Taking Plan-B?

I had unprocted sex june 28 that same night i took plan b a couple of weeks later i was spotting but it wasnt period since that month its been two month that i havent gotten my period i ve been feeling nauseas, lots of headaches, my breast feel sore sometimes, and i get tired fast. I ve also been getting cramps. Could i be pregnant even though i took plan b? Or is that pill messing with my period?
posted on Tue, 22 Sep 2015
Twitter Thu, 22 Oct 2015 Answered on
Twitter Fri, 23 Oct 2015 Last reviewed on
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General & Family Physician,  's  Response
Hi,
Thanks for posting in HCM.
Plan B is an emergency contraceptive pill. It needs to be taken within 72 hours of having unprotected intercourse, and you have rightly done so.
It would prevent pregnancy by causing withdrawal bleeding within 3 weeks from the day of intake of pills. Its protection against pregnancy is about 89%.
Hence, you need to get your bleeding in the form of periods within 3 weeks. In case you don't get it like your regular periods, you need to seek medical help immediately.
Since you have not got proper periods, it could be possible that the pill could have failed in its action.
Also, the symptoms of delayed periods, headache, sore breasts and tiredness are indicative of you being possibly pregnant.
Kindly get your urine pregnancy test done along with trans-vaginal ultrasound scan (TVS) of pelvis and consult Gynecologist for further management.
Hope the information provided would be helpful.
All the best.
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What Causes Delayed Period, Sore Breasts And Headaches After Taking Plan-B?

Hi, Thanks for posting in HCM. Plan B is an emergency contraceptive pill. It needs to be taken within 72 hours of having unprotected intercourse, and you have rightly done so. It would prevent pregnancy by causing withdrawal bleeding within 3 weeks from the day of intake of pills. Its protection against pregnancy is about 89%. Hence, you need to get your bleeding in the form of periods within 3 weeks. In case you don t get it like your regular periods, you need to seek medical help immediately. Since you have not got proper periods, it could be possible that the pill could have failed in its action. Also, the symptoms of delayed periods, headache, sore breasts and tiredness are indicative of you being possibly pregnant. Kindly get your urine pregnancy test done along with trans-vaginal ultrasound scan (TVS) of pelvis and consult Gynecologist for further management. Hope the information provided would be helpful. All the best.