Emergency Contraception: Your Cycle and Bleeding After Use

Emergency contraceptive pill (ECP)

On September 4, I had sexual intercourse with my boyfriend, and five minutes after it ended, I took one emergency contraceptive pill (Ella).
On the morning of September 12, I suddenly experienced bleeding that lasted for 2-3 days.
Then, on September 14, I bought two pregnancy test sticks; one showed a single line immediately.
To ensure accuracy, I tested again the next morning with the first morning urine, and it also showed negative.
I would like to know if I took adequate protective measures, as my period has not arrived yet, and I am feeling a bit anxious.

Doctor, I am the girl from #88560.
Thank you for your previous response, but I missed a few details and would like to know if they have any impact.
This is the first time I experienced bleeding after taking the emergency contraceptive pill; I have taken it before without any bleeding or discomfort.
However, I bled for 2-3 days on September 12, and since September 15, I still have not gotten my period.
My menstrual cycle usually arrives towards the end of the month.
Although there is still some time left until the end of the month, I am unsure if there is any issue with this situation.

m, 10~19 year old female. Ask Date: 2015/10/15

Dr. Lü Lizheng reply Obstetrics and Gynecology

The emergency contraceptive pill contains progesterone, which may interfere with the secretion of hormones in the body, leading to hormonal imbalance and irregular menstruation.
If a pregnancy test confirms that you are not pregnant, it could be due to menstrual irregularities, and you should seek medical evaluation and treatment.
Sincerely, Dr.
Lu Li-Cheng, Taoyuan Hospital.

Reply Date: 2015/10/15

More Info

Emergency contraception, such as the "morning-after pill" (often referred to as Plan B or similar brands), is designed to prevent pregnancy after unprotected intercourse. It is most effective when taken as soon as possible after the event, ideally within 72 hours, but can be taken up to 5 days after. In your case, you took the emergency contraceptive pill (ECP) shortly after having unprotected sex on September 4, which is a good practice for maximizing its effectiveness.

The bleeding you experienced starting on September 12, which lasted for 2-3 days, can be a common side effect of taking emergency contraception. This bleeding is often referred to as "withdrawal bleeding" and can occur due to the hormonal changes induced by the ECP. It is not uncommon for women to experience changes in their menstrual cycle after taking emergency contraception, including earlier or later onset of their next period, as well as variations in flow and duration.

Regarding your concern about pregnancy, the negative results from the pregnancy tests you took on September 14 and the following morning suggest that you are not pregnant. Home pregnancy tests are generally reliable when taken after a missed period, and since you tested negative both times, it is likely that the emergency contraception worked effectively for you. However, it is important to note that the timing of the test is crucial; testing too early can sometimes yield false negatives.

As for your menstrual cycle, it is not unusual for it to be delayed after taking emergency contraception. Since you mentioned that your periods typically arrive towards the end of the month, it is still within the realm of normalcy for your cycle to be slightly off after the hormonal intervention. Stress, changes in routine, or other factors can also contribute to menstrual irregularities.

If your period does not arrive by the expected time, or if you experience any unusual symptoms (such as severe pain or prolonged bleeding), it would be advisable to consult with a healthcare provider. They can provide further evaluation and reassurance.

In summary, based on the information provided:
1. You took the emergency contraception correctly and in a timely manner.

2. The bleeding you experienced is likely a side effect of the ECP and not an indication of pregnancy.

3. It is normal for your menstrual cycle to be affected after taking emergency contraception, and a delay in your period can occur.

4. Continue to monitor your cycle, and if you have concerns or if your period does not arrive, seek medical advice.

Remember, while emergency contraception is a useful option, it is not intended for regular use and should not replace regular contraceptive methods. If you have ongoing concerns about contraception or your menstrual cycle, discussing these with a healthcare provider can help you find a suitable and effective long-term solution.

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