Can I Take Emergency Contraceptive Pills a Week After Intercourse?

Is it effective to take emergency contraception within a week?

After having sexual intercourse with my girlfriend, we engaged in sexual activity again during the cleaning process in the bathroom.
I felt it was unsafe since we weren't using a condom, so we stopped briefly (about 3 minutes).
Although the duration was short, I felt uneasy afterward.
I calculated that it seems to be during her ovulation period.
I’m wondering if taking emergency contraception within a week after intercourse would still be effective? What actions can indicate whether she is pregnant?

Niming, 20~29 year old female. Ask Date: 2016/11/13

Dr. Cao Guotao reply Obstetrics and Gynecology

Hello, emergency contraceptive pills should be taken within 48 hours.
A pregnancy test should be taken at least 12 days after conception to yield accurate results.
If you suspect you might be pregnant, it's best to wait.
It's advisable to use preventive measures beforehand.
If your period is more than a week late, it is recommended to consult a gynecologist.
Wishing you good health.

Reply Date: 2016/11/13

More Info

When it comes to emergency contraception, timing is crucial. Emergency contraceptive pills (ECPs), such as Plan B (levonorgestrel) or Ella (ulipristal acetate), are designed to prevent pregnancy after unprotected intercourse or contraceptive failure. The effectiveness of these pills diminishes over time, so it’s essential to understand how they work and when they should be taken.

1. Timing of ECPs:
- Levonorgestrel (Plan B) is most effective when taken within 72 hours (3 days) after unprotected intercourse, but it can be taken up to 5 days after. However, its effectiveness decreases significantly after the first 72 hours.

- Ulipristal acetate (Ella) can be taken up to 120 hours (5 days) after unprotected intercourse and maintains its effectiveness throughout this period, making it a better option if you are approaching the 72-hour mark.

Given that you are considering taking emergency contraception a week after the intercourse, it is important to note that while it may still be possible to take ECPs, the likelihood of preventing pregnancy decreases significantly after the 5-day window. If you are already a week past the event, the chances of the pills being effective are very low.

2. Signs of Pregnancy:
- After unprotected intercourse, you may start to notice early signs of pregnancy, which can include missed periods, nausea, breast tenderness, fatigue, and frequent urination. However, these symptoms can also be related to other factors, such as hormonal changes or stress.

- The most reliable way to determine if you are pregnant is to take a home pregnancy test. These tests are typically accurate if taken after a missed period, which is usually about two weeks after conception.

3. Consulting a Healthcare Provider:
- If you are concerned about the possibility of pregnancy, it is advisable to consult a healthcare provider. They can offer guidance on the best course of action, including the possibility of taking a pregnancy test and discussing other contraceptive options for the future.

- Additionally, if you find yourself frequently in situations where you are concerned about contraceptive failure, it may be worth discussing long-term contraceptive methods with your healthcare provider.

4. Future Considerations:
- If you are sexually active and concerned about unintended pregnancies, consider discussing regular contraceptive methods with your partner. Options include hormonal birth control, intrauterine devices (IUDs), condoms, or other forms of contraception that can provide ongoing protection.

- It’s also important to have open communication with your partner about sexual health and contraception to ensure both parties are comfortable and informed.

In summary, while taking emergency contraceptive pills a week after intercourse may not be effective, it is essential to monitor for signs of pregnancy and consult a healthcare provider for personalized advice. Being proactive about contraception in the future can help alleviate concerns and ensure both partners feel secure in their sexual health choices.

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Hello, if it is during the ovulation period, it is recommended to take emergency contraceptive pills just in case; one dose is sufficient. Wishing you good health.