Emergency Contraception and Menstrual Cycle Concerns Explained - Obstetrics and Gynecology

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Emergency contraceptive pills and menstrual issues?


I had my menstrual period from January 24 to 26.
I started taking the third pack of oral contraceptive pills on February 2 and finished on February 22.
On February 24, the condom broke, and semen completely entered the uterus.
I would like to ask the doctor: 1.
Is it necessary to take emergency contraception? 2.
If I take emergency contraception, will I still get my period this month? 3.
Are there any side effects from taking emergency contraception now? Thank you for your response, doctor.

Niming, 20~29 year old female. Ask Date: 2020/02/25

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, you probably don't need to take emergency contraception; this period should be safe.
Wishing you good health.

Reply Date: 2020/02/25

More Info


When it comes to emergency contraception and menstrual cycle concerns, there are several important factors to consider. Based on your situation, let’s address your questions one by one.

1. Do you need to take emergency contraception?
Given that you experienced a condom failure on February 24, and considering your recent use of birth control pills, it is advisable to take emergency contraception (EC) if you are concerned about the possibility of pregnancy. Emergency contraception is most effective when taken as soon as possible after unprotected intercourse. The two main types of emergency contraception are levonorgestrel (Plan B) and ulipristal acetate (Ella). Levonorgestrel is effective up to 72 hours after unprotected intercourse, while ulipristal acetate can be effective up to 120 hours. Since your incident occurred within the timeframe, taking EC would be a prudent choice to reduce the risk of unintended pregnancy.

2. Will your period still come if you take emergency contraception?
Taking emergency contraception can affect your menstrual cycle. While many women will still get their period as expected, EC can cause changes in the timing of your next period. Some women may experience their period earlier or later than usual, and the flow may be lighter or heavier. If your period is more than a week late after taking EC, it is recommended to take a pregnancy test to rule out pregnancy.

3. What are the potential side effects of taking emergency contraception?
Emergency contraception is generally safe, but it can come with some side effects. Common side effects include nausea, fatigue, headache, dizziness, breast tenderness, and changes in your menstrual cycle. These side effects are usually mild and temporary. If you experience severe abdominal pain, it is important to seek medical attention, as this could indicate an ectopic pregnancy, which is a rare but serious condition.

In addition to these points, it's important to remember that while emergency contraception is a reliable option for preventing pregnancy after unprotected intercourse, it should not be used as a regular form of birth control. Regular contraceptive methods, such as birth control pills, condoms, or IUDs, are more effective for ongoing prevention of pregnancy.

Lastly, if you have any concerns about your menstrual cycle or the use of emergency contraception, it is always a good idea to consult with your healthcare provider. They can provide personalized advice based on your health history and current situation.
In summary, given the circumstances of your condom failure, taking emergency contraception is advisable. Be aware of the potential changes to your menstrual cycle and the side effects that may occur. If you have further questions or concerns, do not hesitate to reach out to your healthcare provider for guidance.

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