Missed Birth Control Pill: Impact on Effectiveness and Next Steps - Obstetrics and Gynecology

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Missed taking birth control pills?


Hello doctor, I am currently on my fourth pack of YAZ.
I usually take my medication at 10:00 PM every night, but I forgot to take it for one day.
The next morning at 11:20 AM, I remembered and took the missed dose.
Will this affect the contraceptive effectiveness, and do I need to use additional contraceptive measures?

An, 20~29 year old female. Ask Date: 2022/08/06

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, the correct way to eat should be safe.
Wishing you good health.

Reply Date: 2022/08/06

More Info


When it comes to missed birth control pills, it's important to understand how this can impact the effectiveness of the contraceptive method and what steps to take next. Birth control pills, particularly combination pills that contain both estrogen and progestin, work primarily by preventing ovulation. If you miss a pill, especially during the first week of starting a new pack, it can increase the risk of ovulation and, consequently, the risk of unintended pregnancy.

In your case, you mentioned that you typically take your pill at 10 PM and forgot to take it one night, but remembered to take it the next morning at 11:20 AM. Since you took the missed pill within 24 hours, you are still within the safe window to maintain contraceptive effectiveness. The general guideline for missed pills is as follows:
1. If you miss one pill: Take it as soon as you remember, even if it means taking two pills in one day (the missed pill and the current day's pill). You should continue taking the remaining pills as scheduled. In this scenario, your contraceptive protection remains intact.

2. If you miss two or more pills: The recommendations can vary depending on which week of the pill pack you are in. If it’s during the first week, you should use backup contraception (like condoms) for the next seven days. If it’s during the second or third week, you may still take the missed pills, but you should also use backup contraception for at least seven days.

Since you only missed one pill and took it the next morning, you do not need to use additional contraceptive measures. However, it’s always a good practice to be cautious. If you have unprotected intercourse after missing a pill, consider consulting with your healthcare provider about emergency contraception, especially if you are concerned about the risk of pregnancy.

Additionally, if you find that you are frequently forgetting to take your pill, you might want to consider alternative forms of contraception that do not require daily attention, such as the contraceptive patch, the ring, or an intrauterine device (IUD). These methods can provide effective contraception without the daily commitment.

In summary, since you took the missed pill within 24 hours, your contraceptive effectiveness should not be compromised. Continue taking your pills as scheduled, and if you have any further concerns or experience any unusual symptoms, don’t hesitate to reach out to your healthcare provider for personalized advice. It’s always better to be proactive about your reproductive health.

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