How to Properly Start Taking Birth Control Pills: A Guide for Women - Obstetrics and Gynecology

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How to take emergency contraceptive pills?


Hello Dr.
Huang, I have been taking the combined oral contraceptive pill (21 pills) for several months, but I forgot which day of the week I should start taking the pills again after traveling abroad for the past two months.
Should I wait until my period ends (which usually comes 3-5 days after stopping the pills, but not always) to start taking them again, or should I start taking them when my period arrives (which has not come yet)? Alternatively, can I start the next pack at a confirmed time (I remember I took the last pill last Friday)?

Miss Hsu, 20~29 year old female. Ask Date: 2019/04/05

Dr. Huang Jianzhong reply Obstetrics and Gynecology


You have been taking the oral contraceptive pill (21 tablets) for several months, but due to traveling abroad for the past two months, you forgot which day of the week you should start taking the pills again.
Should you wait until your period ends (which usually comes 3-5 days after stopping the pills, but not always) to start taking them, or should you start taking them when your period arrives (which has not yet started)? Alternatively, can you begin the next pack at a confirmed time (I remember taking it until last Friday)?
Answer: Start taking the pills when your period arrives.

Reply Date: 2019/04/05

More Info


When it comes to starting or resuming birth control pills, it's essential to follow a structured approach to ensure maximum effectiveness and minimize the risk of unintended pregnancy. Here’s a comprehensive guide on how to properly start taking birth control pills, especially if you've experienced some interruptions in your regimen.


Understanding Birth Control Pills
Birth control pills, commonly referred to as "the pill," are hormonal contraceptives that prevent ovulation and regulate menstrual cycles. They typically come in packs of 21 or 28 pills, with the latter including placebo pills that do not contain hormones.


When to Start Taking the Pill
1. Starting from Scratch: If you are beginning the pill for the first time, you can start taking it at any time during your menstrual cycle. However, if you start taking it during your period, it will be effective immediately. If you start at another time, you should use a backup method of contraception (like condoms) for the first seven days.

2. Resuming After a Break: If you have been on the pill and missed a few doses, the best practice is to take the last pill you remember and continue from there. If you have missed more than one pill, refer to the specific instructions provided with your pill pack, as recommendations can vary. Generally, if you miss one pill, take it as soon as you remember and continue with the pack. If you miss two or more pills, consult your healthcare provider for guidance.


Your Specific Situation
Given your situation where you have been on the pill for several months but have missed some doses due to travel, here’s what you should consider:
- If Your Period Hasn't Arrived: If you have not yet gotten your period and you remember taking the pill up until last week, you can start the next pack of pills as scheduled. It’s important to maintain consistency in your pill-taking routine. If you are unsure about your cycle, it’s best to consult with your healthcare provider.

- If Your Period Has Arrived: If your period starts while you are on a break from the pills (after taking the 21 active pills), you should start the next pack as soon as your break is over, typically after 7 days. This will help maintain the hormonal balance and prevent ovulation.


Additional Considerations
- Backup Contraception: If you have missed pills, especially if you are unsure about your ovulation status, consider using a backup method of contraception until you have taken the pills consistently for seven days.

- Consulting Your Healthcare Provider: If you have any doubts or concerns about your specific situation, especially regarding missed pills or irregular cycles, it’s always a good idea to consult with your healthcare provider. They can provide personalized advice based on your health history and current circumstances.

- Tracking Your Cycle: Keeping a calendar or using a mobile app to track your pill-taking and menstrual cycle can help you stay organized and reduce the chances of missing doses in the future.


Conclusion
In summary, you can start your next pack of birth control pills based on your last known dose, regardless of whether your period has started or not. If you have missed several doses, ensure to follow the guidelines for missed pills and consider using backup contraception if necessary. Always feel free to reach out to your healthcare provider for tailored advice and support. Taking these steps will help you maintain effective contraception and manage your reproductive health effectively.

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