How to Use Emergency Contraceptive Pills Effectively - Obstetrics and Gynecology

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How to take emergency contraceptive pills?


Hello doctor, if I am planning to have sexual intercourse in two weeks but my period has not arrived yet (it is expected in one week), can I continue taking the emergency contraceptive pill without having my period? If so, will I have contraceptive protection after taking it for 7 days? Thank you.

12, 20~29 year old female. Ask Date: 2024/02/26

Dr. Lin Manying reply Obstetrics and Gynecology


Hello: It is possible to take emergency contraceptive pills without having a menstrual period, but this method is not recommended.
The contraceptive effect can only be achieved after taking the pills regularly for an entire cycle, not just after 7 days.
If you have taken contraceptive pills this month, continue taking them regularly, and on the fifth day of your menstrual period, start the next pack.
Theoretically, this method has a 99.9% effectiveness rate.
Hualien Hospital, Ministry of Health and Welfare, cares about your health.

Reply Date: 2024/02/26

More Info


Emergency contraceptive pills (ECPs) are a crucial option for preventing unintended pregnancies after unprotected intercourse or contraceptive failure. However, it's essential to understand how to use them effectively and the implications of using regular contraceptive pills in conjunction with them.

To address your question, if you are currently taking a regular contraceptive pill and have not yet received your menstrual period, it is generally safe to continue taking your birth control pills as prescribed. Birth control pills work by regulating hormones to prevent ovulation, and they can be taken continuously even if your menstrual cycle is not yet established.
If you are considering using emergency contraception, it is important to note that ECPs are designed for use after unprotected sex and are not intended for regular use as a primary contraceptive method. They are most effective when taken as soon as possible after unprotected intercourse, ideally within 72 hours, but some types can be effective up to 5 days after.
If you take your regular contraceptive pills consistently and correctly, you should have contraceptive protection even if your period is delayed. The effectiveness of your birth control pills does not depend on the presence of your menstrual period. In fact, if you have been taking your pills as directed for at least 7 consecutive days, you should have adequate protection against pregnancy.

However, if you are concerned about the effectiveness of your contraceptive method or if you have missed any doses of your birth control pills, it may be wise to consult with a healthcare provider. They can provide personalized advice based on your specific situation and may recommend additional contraceptive measures, such as using condoms, during the time you are unsure about your contraceptive effectiveness.

In summary, you can continue taking your regular birth control pills even if your period has not yet arrived. If you take them consistently for 7 days, you should have contraceptive protection. If you have any doubts or experience any irregularities in your cycle, consulting with a healthcare professional is always a good practice to ensure you are adequately protected against unintended pregnancy.

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