Oral Contraceptives: Key Questions and Answers - Obstetrics and Gynecology

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Oral contraceptives


If I take the two boxes of Alesse, do I still need to use condoms during the first seven days? If I have intercourse on the first and second day of the second box and forget to take the pill on the third day, and then take two pills on the fourth day after more than 12 hours, is there a risk of pregnancy?

Niming, 10~19 year old female. Ask Date: 2017/01/13

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, emergency contraceptive pills should be taken within 48 hours.
It is always best to use preventive measures beforehand.
If your period is more than a week late, it is advisable to see a gynecologist.
Wishing you good health.

Reply Date: 2017/01/13

More Info


When it comes to understanding oral contraceptives, particularly the use of a combined oral contraceptive pill like "Alesse," there are several important considerations to keep in mind regarding their effectiveness and the necessity of additional contraceptive methods such as condoms.

Firstly, it is crucial to understand that when starting a new pack of oral contraceptives, especially if it is the first time you are using them, it is recommended to use a backup method, such as condoms, for the first seven days. This is because it takes time for the hormones in the pill to build up in your system and provide effective contraception. If you have been taking the pill consistently for at least seven days, you should be protected from pregnancy, and additional contraception is not necessary.

In your specific scenario, if you are on the second pack of Alesse and you have been taking it correctly (i.e., at the same time every day), you should still be protected from pregnancy. However, if you miss a pill, such as forgetting to take the third pill of the second pack, the situation changes. The general guideline is that if you miss a pill and it is more than 12 hours late, you should take the missed pill as soon as you remember and then continue with your regular schedule. However, if you miss a pill and have unprotected intercourse, there is a risk of pregnancy, especially if the missed pill was during the first week of a new pack.

If you missed the third pill and took two pills on the fourth day to catch up, you should still be cautious. The effectiveness of the pill can be compromised if pills are missed, particularly during the first week of a new pack. If you had unprotected sex during the time you missed the pill, there is a possibility of pregnancy, and it may be advisable to consider emergency contraception if you are concerned.

In summary, while oral contraceptives like Alesse are effective when taken correctly, missing pills can lead to a risk of pregnancy. It is always best to consult with a healthcare provider for personalized advice, especially if you have missed pills or have concerns about your contraceptive method. They can provide guidance on what to do next, including whether emergency contraception is necessary and how to manage missed pills in the future.

Additionally, if you find yourself frequently forgetting to take your pill, you might want to discuss alternative contraceptive methods with your healthcare provider. Options such as the contraceptive implant, IUD, or the patch may offer more convenience and reduce the risk of unintended pregnancy due to missed doses. Always remember that consistent and correct use of any contraceptive method is key to its effectiveness.

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