What to Do If You Miss Birth Control Pills: A Guide for Women - Obstetrics and Gynecology

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Issues with Missing Birth Control Pills


You are currently in the third week of taking birth control pills and forgot to take a pill on September 30.
You took two pills on October 1 at 8 AM to make up for it.
However, you realized that you missed pills in the previous few days (uncertain which days within the last 3-5 days), and you had unprotected intercourse on September 30.
Should you stop taking the pills until your period starts and then begin a new pack, or should you continue taking the remaining pills without interruption and start a new pack afterward?

Miss Wang, 10~19 year old female. Ask Date: 2023/10/01

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, after finishing the medication, start taking the next pack of contraceptive pills on the fifth day after your period begins.
Wishing you good health.

Reply Date: 2023/10/01

More Info


Missing birth control pills can be a concerning situation for many women, especially when it involves unprotected intercourse. Here’s a comprehensive guide on what to do if you miss taking your birth control pills, particularly in the context you provided.


Understanding Birth Control Pills
Birth control pills, also known as oral contraceptives, are designed to prevent ovulation and thus reduce the risk of pregnancy. They are most effective when taken consistently at the same time every day. Missing doses can compromise their effectiveness, leading to potential unintended pregnancies.


What to Do If You Miss a Pill
1. Identify the Type of Pill: First, determine if you are on a combination pill (which contains both estrogen and progestin) or a progestin-only pill (mini-pill). The response to missed pills can vary based on the type.

2. Timing of the Missed Pill: If you missed a pill in the first week of your pack and had unprotected sex, there is a higher risk of pregnancy. If you missed a pill in the second or third week, the risk is lower, but still present.

3. Taking the Missed Pill: If you realize you missed a pill, take it as soon as you remember. If you remember on the same day, take the missed pill and continue with your regular schedule. If you remember the next day, take both pills (the missed one and the one for that day).

4. What to Do After Missing Multiple Pills: If you missed pills for several days (like in your case, where you missed pills for 3-5 days), the recommendation is to take the most recent missed pill as soon as you remember, and then continue taking the rest of the pills as scheduled. However, if you missed more than two pills in the first week, it is advised to use a backup method of contraception (like condoms) for at least seven days.

5. Emergency Contraception: Since you had unprotected intercourse on September 30th after missing pills, you may want to consider emergency contraception (like Plan B) if you are concerned about pregnancy. This is most effective when taken within 72 hours after unprotected sex, but some forms can be effective up to 5 days after.

6. Restarting the Pill: If you are unsure about your missed pills and are concerned about the risk of pregnancy, you can choose to stop taking the current pack and wait for your period to start a new pack. However, this is generally not necessary unless you missed multiple pills in the first week or are experiencing significant anxiety about potential pregnancy.


Monitoring Your Cycle
After missing pills, it’s essential to monitor your menstrual cycle. If your period is late or you experience unusual symptoms, consider taking a pregnancy test. If you have any doubts or concerns, consult with your healthcare provider for personalized advice.


Conclusion
In summary, if you missed birth control pills, take the missed pill as soon as you remember, continue with the rest of the pack, and consider using backup contraception if you missed more than one pill in the first week. If you had unprotected sex after missing pills, consider emergency contraception and consult your healthcare provider for further guidance. Always keep an open line of communication with your healthcare provider regarding any concerns about your birth control method and its effectiveness.

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Dr. Zhang Kunmin reply Obstetrics and Gynecology
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Hello, please continue taking your medication, but be aware that the contraceptive effect may be reduced. It is best to also use condoms for additional contraception. Wishing you good health.

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