Unusual Menstrual Symptoms After Emergency Contraceptive Use: What to Know

Symptoms of menstrual irregularities after using emergency contraceptive pills?

In January 2016, the menstrual period was from January 18 to 24.
After having intercourse with my boyfriend on January 30, the condom broke, and I took the emergency contraceptive pill, Levonorgestrel, within 6 hours.
A week after taking it, I began to experience significant breast tenderness (which I had not experienced before my periods).
On February 11, I started to notice light bleeding, but I usually have abdominal pain during my periods, and this time I did not.
The amount of menstrual flow was much less than usual, and I only noticed a small amount of blood in the toilet after using it.
If I count from February 11, it has been almost 10 days since the onset of bleeding.
Although I usually have light menstrual flow, the blood typically turns dark red around the fifth day and then gradually stops.
However, this time the blood is still bright red.
I would like to ask the doctor if this situation is normal.

Mantou Mei, 20~29 year old female. Ask Date: 2016/02/21

Dr. Cao Guotao reply Obstetrics and Gynecology

Hello, emergency contraceptive pills can sometimes cause irregular menstruation.
If you continue to experience abnormal bleeding after a few days, it is advisable to consult a gynecologist.
Wishing you good health.

Reply Date: 2016/02/21

More Info

After taking emergency contraception, such as the pill you mentioned (likely a levonorgestrel-based pill), it is not uncommon to experience unusual menstrual symptoms. Emergency contraceptives can cause a variety of side effects, including changes in your menstrual cycle. Here’s what you should know about your situation:
1. Changes in Menstrual Cycle: Emergency contraceptive pills can lead to alterations in your menstrual cycle. This can include changes in the timing of your period, the flow (heavier or lighter), and the color of the menstrual blood. It’s not unusual for some women to experience lighter periods or spotting after taking these pills.

2. Breast Tenderness: The breast tenderness you are experiencing is another common side effect of hormonal changes due to the emergency contraceptive. This symptom can occur as your body adjusts to the sudden influx of hormones.

3. Timing of Your Period: Since you took the emergency contraceptive shortly after your last menstrual period, it’s possible that the hormonal changes are affecting your cycle. The bleeding you experienced starting on February 11 could be a result of the emergency contraceptive, and it may not follow your typical menstrual pattern.

4. Color and Flow of Menstrual Blood: The fact that your menstrual blood is a brighter red than usual and that you have experienced a lighter flow can be attributed to the hormonal fluctuations caused by the emergency contraceptive. It’s not uncommon for the blood to appear brighter and for the flow to be lighter, especially if this is not your usual pattern.

5. Duration of Bleeding: If your bleeding continues for an extended period or if you experience any other concerning symptoms (such as severe pain, heavy bleeding, or signs of infection), it is important to consult a healthcare provider. While some women may experience prolonged bleeding after taking emergency contraception, it should eventually normalize.

6. When to Seek Medical Attention: If the bleeding persists beyond a couple of weeks, or if you have any severe symptoms such as intense abdominal pain, dizziness, or fainting, you should seek medical attention. Additionally, if you miss your next period (which is expected around the time of your usual cycle), you may want to take a pregnancy test to rule out pregnancy.

7. Future Contraceptive Use: If you find that emergency contraception is becoming a frequent necessity, it may be worth discussing long-term contraceptive options with your healthcare provider. There are various methods available that can provide more reliable protection against unintended pregnancy.

In summary, while the symptoms you are experiencing after taking emergency contraception can be concerning, they are often within the realm of normal side effects. However, if you have any doubts or if your symptoms worsen, it is always best to consult with a healthcare professional for personalized advice and reassurance.

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