Post-Pill Bleeding: Irregular Periods After Emergency Contraception - Obstetrics and Gynecology

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Emergency contraceptive pills, abnormal bleeding, delayed menstruation?


On April 17, the condom accidentally broke, and I took emergency contraception.
I took it again in early May.
After the May dose, I experienced about five days of bleeding similar to a menstrual period, but my period has not come since then, and it has been almost two months.
However, I have been experiencing light bleeding (the amount of a panty liner) that sometimes appears brown and other times bright red.
I have taken a pregnancy test, and it showed negative.
What could this indicate? Thank you!

Ms. Huang, 10~19 year old female. Ask Date: 2020/07/04

Dr. Lin Manying reply Obstetrics and Gynecology


Hello Ms.
Huang: It is recommended that you take another pregnancy test.
If the result is negative, it may be due to the medication disrupting your hormones.
Please seek treatment at a medical facility.
The Hualien Hospital of the Ministry of Health and Welfare cares about your health.

Reply Date: 2020/07/04

More Info


Post-pill bleeding, or irregular bleeding after taking emergency contraception, is a common concern for many women. Emergency contraceptive pills (ECPs), such as Plan B or Ella, contain hormones that can disrupt the normal menstrual cycle. After taking ECPs, it is not unusual to experience changes in your menstrual pattern, including irregular bleeding or spotting.

In your case, it sounds like you experienced a withdrawal bleed about five days after taking the emergency contraception, which is a common response as the body reacts to the sudden influx of hormones. However, the continued light bleeding for almost two months, along with the absence of a regular menstrual period, can be concerning. This type of bleeding can be referred to as "post-pill bleeding" and can manifest as light spotting or irregular bleeding that may vary in color from brown to bright red.

Several factors can contribute to this situation:
1. Hormonal Fluctuations: Emergency contraception can cause hormonal fluctuations that may lead to irregular periods. The hormones in ECPs can delay ovulation and alter the uterine lining, which can result in unexpected bleeding.

2. Stress and Lifestyle Factors: Stress, significant weight changes, excessive exercise, or other lifestyle factors can also affect your menstrual cycle. These factors can lead to hormonal imbalances that may cause irregular bleeding.

3. Underlying Health Conditions: Conditions such as polycystic ovary syndrome (PCOS), thyroid disorders, or other hormonal imbalances can also lead to irregular periods and abnormal bleeding. If you have a history of such conditions, it may be worth discussing them with your healthcare provider.

4. Pregnancy: Although you mentioned that you have taken a pregnancy test and it was negative, it is important to ensure that the test was taken correctly and at the appropriate time. If there is any doubt, a follow-up test or a visit to a healthcare provider for a blood test may be warranted.

5. Infection or Other Issues: In some cases, irregular bleeding can be a sign of an infection or other gynecological issues. If the bleeding persists or is accompanied by other symptoms such as pain, fever, or unusual discharge, it is essential to seek medical attention.

Given that you have been experiencing this irregular bleeding for nearly two months, it is advisable to consult with a healthcare provider. They can perform a thorough evaluation, which may include a physical examination, blood tests to check hormone levels, and possibly an ultrasound to assess the reproductive organs. This will help rule out any underlying conditions and provide you with appropriate treatment options.

In summary, while post-pill bleeding is common after taking emergency contraception, persistent irregular bleeding should be evaluated by a healthcare professional. They can help determine the cause and recommend the best course of action to restore your menstrual cycle to normal. Remember, your health and well-being are paramount, and seeking medical advice is always a prudent step when experiencing unusual symptoms.

Similar Q&A

Understanding Irregular Periods After Taking Emergency Contraceptive Pills

I took emergency contraception on February 4th, and my menstrual cycle is about 25 days. My period was from March 4th to March 10th, which was two weeks later than expected. However, I started bleeding again on March 21st. Could this irregular bleeding be caused by the emergency ...


Dr. Cao Guotao reply Obstetrics and Gynecology
Hello, it is possible that the irregular menstruation is caused by the emergency contraceptive pill. First, confirm that you are not pregnant, and then you can just monitor the situation. Wishing you good health.

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If I took the emergency contraceptive pill two hours after sexual intercourse and experienced bleeding a few days later, followed by another episode of bleeding after that, both of which were similar in timing and amount to my usual menstrual period, is there a connection?


Dr. Cao Guotao reply Obstetrics and Gynecology
Hello, emergency contraceptive pills can sometimes cause irregular menstruation; just monitor the situation. Wishing you good health.

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After taking the emergency contraceptive pill, I experienced some bleeding starting on May 5, which has continued until now. Recently, the bleeding has increased significantly and resembles the second day of my menstrual period, with a lot of blood for the past two days. What cou...


Dr. Zhang Kunmin reply Obstetrics and Gynecology
What you need is not medical advice but rather a remedial course in sexual education. For such inquiries, it is recommended to refer to the National Health Administration's "Sexual Well-being e-Learning" or the Obstetrics and Gynecology Society's "Consult...

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On April 14, there was unprotected intercourse, and emergency contraception was taken within 24 hours. There has been bleeding since April 20, but the last menstrual period was on April 4. Previous menstrual cycles have been regular, typically ranging from 30 to 32 days. Is this ...


Dr. Lin Manying reply Obstetrics and Gynecology
For such issues, it is recommended to refer to the National Health Administration's "Sexual Health e-Learning" or the Obstetrics and Gynecology Society's "Consultation Guide for Adolescent Contraception" at http://goo.gl/dc6PfW. After taking emergenc...

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