Prolonged Bleeding After Taking Emergency Contraceptive: Is It Normal? - Obstetrics and Gynecology

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Having a menstrual period that lasts more than 12 days after taking emergency contraception?


Doctor, I would like to ask about my menstrual cycle.
My period started on February 28, and I took emergency contraception around February 15.
Now, on March 10, I am still experiencing bleeding.
This is my first time taking emergency contraception.
Is this normal?

Rong, 20~29 year old female. Ask Date: 2016/03/10

Dr. Tian Yiwen reply Obstetrics and Gynecology


Emergency contraceptive pills contain high doses of hormones, and some individuals may experience menstrual irregularities after taking them.
If prolonged bleeding occurs, it is advisable to consult a gynecologist for evaluation.

Reply Date: 2016/03/10

More Info


Prolonged bleeding after taking emergency contraceptive pills (ECPs) can be a concerning experience for many women. It is important to understand the potential side effects of these medications and how they can affect your menstrual cycle.

Emergency contraceptive pills, such as Plan B (levonorgestrel) or Ella (ulipristal acetate), are designed to prevent pregnancy after unprotected intercourse or contraceptive failure. They work primarily by delaying ovulation, but they can also cause changes in the menstrual cycle. It is not uncommon for women to experience irregular bleeding or spotting after taking ECPs. This can manifest as prolonged bleeding, heavier than usual menstrual flow, or even unexpected bleeding between periods.

In your case, since you took the emergency contraceptive pill on February 15 and are still experiencing bleeding as of March 10, it is essential to consider a few factors. First, the bleeding you are experiencing may be a side effect of the ECP. Many women report changes in their menstrual cycle after taking these pills, including prolonged bleeding, which can last for several days to weeks. This is often due to hormonal fluctuations caused by the medication.

However, if the bleeding is significantly heavier than your normal menstrual flow, lasts longer than a typical period, or is accompanied by severe pain or other concerning symptoms, it is advisable to seek medical attention. Heavy or prolonged bleeding can sometimes indicate other underlying issues, such as hormonal imbalances, uterine fibroids, or even complications related to the use of emergency contraception.

It is also important to note that while ECPs are effective at preventing pregnancy, they are not 100% guaranteed. If you have concerns about the possibility of being pregnant, especially if you have had unprotected intercourse after taking the pill, it may be wise to take a pregnancy test. Many women experience changes in their menstrual cycle after taking ECPs, which can sometimes lead to confusion regarding their pregnancy status.

In summary, while prolonged bleeding after taking emergency contraception can be a normal side effect, it is crucial to monitor the situation closely. If the bleeding continues or worsens, or if you experience any additional symptoms that cause concern, please consult with a healthcare provider for further evaluation and guidance. They can help determine whether the bleeding is a normal response to the medication or if further investigation is needed.

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