the Impact of Breaks in Birth Control Pills on Efficacy

Questions related to menstrual regulation after taking emergency contraceptive pills in the second month?

Hello doctor, I started taking the contraceptive pill, Qilian, on the fifth day of my menstrual cycle (July 17) after visiting the obstetrics and gynecology department, and I finished it on August 6.
I got my period from August 11 to August 13.
After stopping the medication, I returned for a follow-up appointment on the seventh day.
The doctor advised me to start the second month of the contraceptive pill on the 15th.
This means I will have been off the medication for 9 days.
Will this affect the contraceptive effectiveness? When starting the second month of the contraceptive pill, should I begin taking it 7 days after stopping or on the fifth day of my menstrual cycle?

Zhang, 20~29 year old female. Ask Date: 2020/08/13

Dr. Zhang Kunmin reply Obstetrics and Gynecology

Hello, both methods of consumption are acceptable.
If you have further questions, you may consult the prescribing physician to discuss their recommendations and the reasoning behind them.
Thank you! Wishing you peace and health.
Dr.
Chang

Reply Date: 2020/08/13

More Info

When it comes to understanding the impact of breaks in birth control pills on their efficacy, it is essential to consider how hormonal contraceptives work and the importance of consistent usage. Birth control pills, such as the one you mentioned (祈麗安), are designed to prevent ovulation, thicken cervical mucus, and thin the uterine lining, thereby reducing the chances of pregnancy.

In your case, you started taking the pill on the fifth day of your menstrual cycle and completed the first pack by August 6. After a break of seven days, during which you experienced your period, you were advised to start the second pack on August 15. This means there was a gap of nine days between the end of the first pack and the beginning of the second pack.

The efficacy of birth control pills can be compromised if there is a break in taking them, especially if that break exceeds the recommended seven-day interval. The general guideline is that if you miss a pill or take a break longer than seven days, you may not be adequately protected against pregnancy until you have taken the pills consistently for seven days again. In your situation, since you stopped taking the pills for nine days, there is a possibility that your contraceptive protection was reduced during that time.

To clarify the timing of when to start the next pack of pills: typically, you should start taking the next pack after a seven-day break, which coincides with the end of your menstrual period. However, since you were advised to start on the 15th, it is crucial to follow your doctor's instructions, as they are tailored to your specific situation.

If you are concerned about the effectiveness of your birth control during this break, it is advisable to use a backup method of contraception, such as condoms, until you have taken the pills consistently for seven days. This will help ensure that you are protected against unintended pregnancy.

In summary, while a break in taking birth control pills can affect their efficacy, following your healthcare provider's guidance is essential. If you have any further concerns or questions about your birth control method, do not hesitate to reach out to your healthcare provider for personalized advice. They can provide you with the most accurate information based on your health history and current situation.

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