What to Do If You Start Birth Control on the Wrong Day? - Obstetrics and Gynecology

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If you or your girlfriend have started birth control on the wrong day, it’s important to understand how to proceed to ensure effective contraception and minimize the risk of unintended pregnancy. Here’s a comprehensive guide on what to do in this situation.


Understanding Birth Control Pills
Birth control pills are designed to be taken daily to prevent ovulation and regulate menstrual cycles. The effectiveness of the pill largely depends on when you start taking it in relation to your menstrual cycle. Most combination birth control pills can be started either on the first day of your period or on the first Sunday after your period begins. Starting on the first day of your period provides immediate contraceptive protection, while starting on a Sunday typically requires using backup contraception for the first seven days.


What Happens If You Start on the Wrong Day?
In your case, your girlfriend took her first pack of pills and then started her period two days later, mistakenly thinking she should start the new pack on the first day of her period. Here’s what to do:
1. Continue Taking the Pills: She should continue taking the pills as directed, even if she started on the wrong day. It’s crucial not to skip any doses.

2. Use Backup Contraception: Since she did not start the pills correctly, it is advisable to use a backup method of contraception (like condoms) for at least the first seven days of taking the pills. This will help prevent any risk of pregnancy during this initial period.

3. Monitor for Side Effects: Starting birth control can cause some side effects, such as nausea, headaches, or changes in bleeding patterns. If she experiences severe side effects or has concerns, she should consult her healthcare provider.

4. Consult a Healthcare Provider: It’s always a good idea to reach out to a healthcare provider for personalized advice. They can provide guidance based on her specific situation and may suggest a different method of starting the pills or alternative contraceptive options if necessary.

5. Plan for Future Packs: When she finishes the current pack, she should continue with the next pack as scheduled. If she has any doubts about when to start the next pack, she should consult her healthcare provider.


Additional Considerations
- Understanding the Menstrual Cycle: It’s important to understand how the menstrual cycle works and how birth control pills interact with it. The first day of the period is considered Day 1 of the cycle, and starting the pill on this day is typically the most effective method for immediate contraception.

- Educating on Birth Control: If your girlfriend is new to birth control, it may be beneficial for both of you to educate yourselves about how the pills work, the importance of taking them at the same time every day, and what to do in case of missed pills.

- Emergency Contraception: If there’s any concern about potential pregnancy due to incorrect pill usage, emergency contraception (like Plan B) may be an option. It’s most effective when taken as soon as possible after unprotected intercourse.


Conclusion
Starting birth control on the wrong day can be confusing, but by continuing to take the pills, using backup contraception, and consulting with a healthcare provider, you can effectively manage the situation. Open communication between partners about contraceptive methods and understanding how they work is essential for effective family planning. Always prioritize safety and health by seeking professional advice when in doubt.