Emergency Contraceptive Pills: Your Questions Answered - Obstetrics and Gynecology

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Emergency contraceptive pill


Hello Doctor, I stopped taking my medication on September 5th, and my period started on September 8th.
I was supposed to start taking the medication again on September 12th, but due to a confirmed diagnosis, I took a lot of medication and paused for a month.
I had sexual intercourse on September 28th and 29th, using condoms throughout, and I also had a water flush check.
Yesterday, I noticed a little bit of blood, which I initially thought was the start of my period, but it seems more like pre-menstrual spotting with brown discharge.
I took the first pill today as planned.
Given this situation, should I continue taking the medication today or stop? What effects might taking this pill have? Could this be a sign of pregnancy? Thank you, Doctor!

Peiyu, 20~29 year old female. Ask Date: 2022/10/03

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, please refrain from taking the medication for now.
Start taking it on the fifth day of your menstrual cycle.
Let's observe for the time being.
Wishing you good health.

Reply Date: 2022/10/03

More Info


Understanding emergency contraceptive pills (ECPs) and their implications can be quite complex, especially when considering individual circumstances such as your recent health history and menstrual cycle. Let's break down your situation and address your concerns regarding the use of ECPs, potential pregnancy signs, and the implications of your recent symptoms.

Emergency contraceptive pills, commonly known as ECPs, are designed to prevent pregnancy after unprotected intercourse or contraceptive failure. They are most effective when taken as soon as possible after the event, ideally within 72 hours, but some types can be taken up to 120 hours afterward. The primary mechanism of action for ECPs is to delay ovulation, thereby preventing fertilization.
In your case, you mentioned that you had sexual intercourse on September 28 and 29, and you took the first ECP on the first day of what you thought was your menstrual cycle. However, you also noted that the discharge you observed was brownish, which can sometimes indicate old blood rather than fresh menstrual flow. This can happen for various reasons, including hormonal fluctuations or the effects of medications you may have taken.

Given that you had a menstrual period on September 8, and you are now experiencing brown discharge, it is essential to consider a few factors:
1. Timing of ECP Use: Since you took the ECP shortly after your sexual intercourse, it is crucial to continue taking the medication as prescribed. If you are unsure whether to continue, consult your healthcare provider for personalized advice. Generally, if you have started the ECP regimen, it is advisable to complete the course.

2. Signs of Pregnancy: The brown discharge you are experiencing is not a definitive sign of pregnancy. It could be related to hormonal changes, especially since you mentioned stopping medication recently. Common early signs of pregnancy include missed periods, nausea, breast tenderness, and fatigue. If your next period is significantly delayed or you experience other symptoms, consider taking a home pregnancy test or consulting your healthcare provider.

3. Impact of Other Medications: You mentioned taking various medications due to a recent diagnosis. Some medications can interact with hormonal contraceptives, potentially reducing their effectiveness. It is essential to inform your healthcare provider about all medications you are taking to ensure they can provide the best advice regarding your contraceptive methods.

4. Follow-Up: If you continue to have unusual symptoms or if your menstrual cycle does not return to normal, it is advisable to seek medical attention. A healthcare provider can perform a thorough evaluation, including a pregnancy test if necessary, and provide guidance based on your specific situation.

In conclusion, continue taking the ECP as directed unless advised otherwise by your healthcare provider. Monitor your symptoms, and if you have concerns about potential pregnancy or the effects of your medications, do not hesitate to reach out for professional medical advice. Understanding your body and the medications you are taking is crucial for your reproductive health, and your healthcare provider is the best resource for personalized guidance.

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