Emergency Contraceptive Pills: Success Rates and Symptoms - Obstetrics and Gynecology

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Emergency contraceptive pill


Hello doctor, I am #149677.
I would like to follow up on your answer.
You mentioned that the bleeding is during the ovulation period; does this mean that the emergency contraceptive pill was not effective? Does this imply that implantation could still occur? Currently, my discharge is sometimes reddish-brown and sometimes coffee-colored.
What does this mean? Should I see a gynecologist? Will my period come, or could this be a sign of early pregnancy? Thank you.

Cindy, 20~29 year old female. Ask Date: 2019/08/20

Dr. Huang Jianzhong reply Obstetrics and Gynecology


Ovulation bleeding, does it mean that the emergency contraceptive pill was unsuccessful and implantation might still occur? Answer: The effectiveness of emergency contraception is limited in time.
Currently, my discharge is sometimes reddish-brown and sometimes coffee-colored; what does this mean? Answer: It could be ovulation bleeding.
Should I see a gynecologist? Answer: It’s advisable to monitor the situation.
Will my period come, or is this a sign of early pregnancy? Answer: Not necessarily.

Reply Date: 2019/08/20

More Info


Understanding emergency contraceptive pills (ECPs) is crucial for anyone who may need them. ECPs, often referred to as "morning-after pills," 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, although some types can be effective up to 5 days later.


Success Rates of Emergency Contraceptive Pills
The success rate of ECPs varies depending on several factors, including the timing of administration relative to ovulation. Generally, ECPs can reduce the risk of pregnancy by 75-89% when taken within the recommended time frame. However, their effectiveness diminishes the longer you wait after unprotected intercourse. If ovulation has already occurred, ECPs may not prevent pregnancy, as they primarily work by delaying or inhibiting ovulation.


Symptoms After Taking Emergency Contraceptive Pills
After taking ECPs, some women may experience side effects, which can include:
- Nausea and vomiting: This is a common side effect, and if vomiting occurs within two hours of taking the pill, it may be necessary to take another dose.

- Fatigue: Many women report feeling tired after taking ECPs.

- Headaches: Hormonal changes can lead to headaches.

- Breast tenderness: Hormonal fluctuations can cause discomfort in the breasts.

- Changes in menstrual cycle: ECPs can cause your next period to be earlier, later, or heavier than usual. Some women may also experience spotting or bleeding.


Understanding Your Symptoms
Regarding your specific symptoms of red-brown and coffee-colored discharge, this could be attributed to several factors:
1. Hormonal Changes: ECPs can cause changes in your menstrual cycle, leading to spotting or irregular bleeding.

2. Implantation Bleeding: If you are pregnant, some women experience light spotting when the fertilized egg implants into the uterine lining. However, this is typically lighter than a regular period.

3. Menstrual Cycle Variability: If your period is approaching, these symptoms could simply be a sign of your menstrual cycle.


Should You See a Gynecologist?
Given your concerns and the symptoms you're experiencing, it would be wise to consult with a gynecologist. They can provide a thorough evaluation, including a pregnancy test if necessary, and help clarify whether your symptoms are related to the use of ECPs or if they indicate something else.


Will Your Period Come?
It is difficult to predict with certainty whether your period will come as expected. ECPs can alter your menstrual cycle, and it may be delayed or altered in flow. If your period is more than a week late, it is advisable to take a pregnancy test.


Conclusion
In summary, while ECPs are effective in preventing pregnancy, they can cause various side effects and changes in your menstrual cycle. Your symptoms of spotting and changes in discharge could be related to hormonal fluctuations from the ECPs, but they could also indicate other conditions. Consulting with a healthcare professional will provide you with the best guidance tailored to your situation. Always prioritize your health and seek medical advice when in doubt.

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