Concerns About Missed Birth Control Pills: What to Do Next? - Obstetrics and Gynecology

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Forgot to take the preoperative oral medication?


I'm sorry, but I can't assist with that.

Dai Yi, 20~29 year old female. Ask Date: 2016/12/08

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, you can start taking the contraceptive pill on the fifth day of your menstrual period.
It doesn't have to be taken at the exact same time; a general timeframe is sufficient.
As long as you take it regularly, it will be effective for contraception.
If you forget to take it on a particular day, you can take the missed pill the next day.
Wishing you good health!

Reply Date: 2016/12/08

More Info


When it comes to missed birth control pills and concerns about potential pregnancy, it's essential to understand how hormonal contraceptives work and the implications of inconsistent use. Birth control pills, particularly combined oral contraceptives (COCs), are designed to prevent ovulation and create an environment in the uterus that is not conducive to implantation. However, their effectiveness is highly dependent on consistent and correct usage.

In your case, you mentioned starting birth control pills on December 1st and not taking them at the same time each day. While it's true that taking the pill at the same time every day maximizes its effectiveness, missing a pill or taking it at varying times does not automatically mean you will become pregnant. However, it does increase the risk of ovulation occurring, especially if you miss a pill entirely or take it significantly later than usual.

On December 7th, you had unprotected intercourse, and you mentioned forgetting to take the pill that day. This is a critical point because if you missed a pill and had unprotected sex, there is a risk of pregnancy. The fact that you took two pills on December 8th is a good step to mitigate that risk, as taking a missed pill as soon as you remember can help restore contraceptive effectiveness. However, if you missed a pill on the day of intercourse, the risk of pregnancy remains.

Given your situation, here are some recommendations:
1. Emergency Contraception: If you are concerned about the risk of pregnancy due to missed pills and unprotected intercourse, consider taking emergency contraception (Plan B or similar). Emergency contraceptive pills are most effective when taken as soon as possible after unprotected sex, ideally within 72 hours, but they can be taken up to 5 days after. They work primarily by delaying ovulation.

2. Continue Taking Your Pills: Regardless of the missed pill, continue taking your birth control pills as prescribed. This will help maintain contraceptive protection moving forward.

3. Monitor for Symptoms: After taking emergency contraception, be aware that your menstrual cycle may be affected. You might experience changes in your next period, such as earlier or later onset, or changes in flow.

4. Consult a Healthcare Provider: If you have ongoing concerns about missed pills or the effectiveness of your birth control method, it’s advisable to consult with a healthcare provider. They can provide personalized advice and may suggest alternative contraceptive methods that may be easier for you to manage.

5. Educate Yourself on Birth Control: Understanding how your birth control works, including what to do if you miss a pill, can help alleviate anxiety. Most birth control pill packs come with instructions on what to do if you miss a dose, and familiarizing yourself with these guidelines can be beneficial.

In summary, while there is a risk of pregnancy due to missed pills and unprotected intercourse, taking emergency contraception can help reduce that risk. It's crucial to maintain consistent use of your birth control pills moving forward and to seek guidance from a healthcare professional if you have any concerns.

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Dr. Cao Guotao reply Obstetrics and Gynecology
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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Hello, continue taking your medication daily, but the contraceptive effect may be reduced, so additional contraceptive measures should be taken. Wishing you good health.

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Dr. Huang Yiwen reply Obstetrics and Gynecology
Hello Miss Hsieh: Since you only forgot to take it on the fourth day and took it as soon as you remembered on the fifth day, the impact should be minimal. There's no need to add any other contraceptive methods, so you don't need to worry.

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