Restarting Birth Control Pills: What to Do After a Missed Dose - Obstetrics and Gynecology

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Contraceptive pill issues?


I have been taking a 21-day birth control pill for about 3 months.
I should stop taking the pills for 7 days after completing each pack and start a new pack on the 8th day.
I was supposed to start the new pack on November 17, but I forgot and only remembered on November 21.
Should I start taking a new pack of birth control pills immediately on November 21 and count the 21-day cycle from that date, disregarding the previous days of use? Thank you.

Miss Liang, 20~29 year old female. Ask Date: 2020/11/21

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, the questioner: Since you have missed taking the pill for three days or more, it is recommended to stop taking the current pack for this cycle.
Start a new pack of contraceptive pills on the first day (or the fifth day) of your menstrual period.
Thank you! Wishing you safety and health.
Dr.
Chang

Reply Date: 2020/11/21

More Info


When it comes to restarting birth control pills after a missed dose, it's essential to follow the guidelines to ensure effective contraception and maintain a regular menstrual cycle. Based on your situation, where you were supposed to start a new pack of pills on November 17 but forgot and only began on November 21, here’s what you should consider:
1. Starting the New Pack: Yes, you should start the new pack of birth control pills immediately on November 21. This means you will begin counting your 21-day cycle from this date. It’s important to resume taking the pills as soon as you remember to maintain the effectiveness of the contraceptive method.

2. Effectiveness of Contraception: Since you missed the intended start date, it’s crucial to understand that the effectiveness of the birth control pills may be compromised initially. The first seven days of taking the new pack are critical. During this time, you should use an additional form of contraception, such as condoms, to prevent unintended pregnancy. After seven consecutive days of taking the pills correctly, you should be protected against pregnancy.

3. Previous Cycle Considerations: As for the days leading up to November 21, you do not need to worry about the missed days. The previous cycle is considered complete, and you should focus on the new pack. However, if you had unprotected intercourse during the time you were supposed to start the new pack, there is a risk of pregnancy, and you may want to consider emergency contraception if it was within the appropriate time frame.

4. Managing Side Effects: Restarting birth control pills can sometimes lead to side effects such as spotting or changes in your menstrual cycle. If you experience any unusual symptoms or prolonged bleeding, it’s advisable to consult with your healthcare provider for guidance.

5. Future Doses: Going forward, try to establish a routine that helps you remember to take your pills consistently. Setting a daily alarm, using a pill organizer, or utilizing mobile apps designed for medication reminders can be beneficial.

6. Consultation with Healthcare Provider: If you have any concerns about the missed doses or how to manage your birth control effectively, it’s always a good idea to consult with your healthcare provider. They can provide personalized advice based on your health history and specific circumstances.

In summary, restart your birth control pills on November 21, use additional contraception for the first seven days, and focus on establishing a consistent routine for taking your pills in the future. If you have any further questions or concerns, don’t hesitate to reach out to your healthcare provider for assistance.

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