Missed Birth Control Pills: What to Do Next for Effective Prevention - Obstetrics and Gynecology

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Missed taking birth control pills?


Hello, I missed taking my birth control pill (21-pill pack) last Sunday.
I took one pill within 12 hours the next day, but I missed the pill for Monday that evening.
On Tuesday night, I took two pills (including the one for Tuesday).
How many pills should I take on Wednesday? If I follow the information I found and continue taking the pills normally after that, can I proceed to the next pack without a break, and after finishing the second pack, take a seven-day break before starting the next pack?

Lin Ting, 20~29 year old female. Ask Date: 2023/04/04

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, if you forget to take your medication one day, it is best to take the missed dose as soon as possible within twelve hours.
You should continue to take the originally scheduled pill for that day (taking two pills that day).
If more than twelve hours have passed since the missed dose of an effective pill, in addition to taking the missed dose, it is advisable to use additional barrier contraception for seven days.
If you forget to take the pill for two consecutive days, you should take two pills each day for those two days, and then continue taking one pill daily until the entire pack is finished.
If you miss three days or more, the contraceptive effectiveness of that month's birth control pills is compromised, and you should stop taking the remaining pills.
You will need to wait a few days for your period to start, and then begin a new pack of birth control pills on the first day (or the fifth day) of your menstrual cycle.
If you miss a dose and do not experience the expected withdrawal bleeding during the subsequent pill-taking period, you should suspect the possibility of pregnancy.
If withdrawal bleeding occurs, continue with the previous regimen.
Thank you! Wishing you peace and health, Dr.
Zhang.

Reply Date: 2023/04/04

More Info


When it comes to missed birth control pills, it's important to understand how to effectively manage your medication to maintain contraceptive efficacy. Based on the scenario you've described, where you missed a pill on Sunday, took it within 12 hours, missed another pill on Monday, and then took two pills on Tuesday, here’s a comprehensive guide on what to do next.

First, it's crucial to recognize that the effectiveness of birth control pills can be compromised if pills are missed, especially during the first week of a new pack. However, since you took the missed pill within the 12-hour window, you mitigated some risk. The general rule for combination birth control pills (which contain both estrogen and progestin) is as follows:
1. If you miss one pill: Take it as soon as you remember. If you remember within 12 hours, you should be protected from pregnancy. Continue taking the rest of the pills as scheduled.

2. If you miss two pills: If you missed two pills in a row during the first two weeks of the pack, take the last missed pill as soon as you remember and discard the other missed pill. Continue taking the remaining pills as scheduled. However, you should use backup contraception (like condoms) for the next seven days.

3. If you miss pills in the third week: If you miss pills in the third week, you should skip the placebo week and start the next pack immediately after finishing the active pills. This helps maintain hormone levels and prevents ovulation.

In your case, since you took the missed Sunday pill within the appropriate time frame and then took the missed Monday pill on Tuesday, you should continue taking your pills as scheduled. On Wednesday, you should take your regular pill for that day.
As for your question about continuing the next pack, yes, you can continue taking the next pack without a break after finishing the current pack. This is often referred to as "continuous cycling" and can be beneficial for managing menstrual symptoms. However, if you choose to take a break after the second pack, you should follow the standard protocol of taking a seven-day break before starting the next pack.

It's also important to note that if you miss pills and are concerned about pregnancy, consider taking a home pregnancy test if your period is late or if you experience any unusual symptoms.
In summary, for your situation:
- Take your Wednesday pill as scheduled.

- Continue with the next pack without a break if you prefer.

- Use backup contraception for at least seven days if you missed two pills in the first two weeks.

- Monitor your cycle and consider a pregnancy test if your period is late.

Lastly, if you have ongoing concerns about missed pills or contraceptive methods, it’s advisable to consult with your healthcare provider for personalized advice and to discuss alternative contraceptive options that may better suit your lifestyle.

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