Starting Birth Control Late: What You Need to Know - Obstetrics and Gynecology

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Start taking the medication two days prior?


Hello, Dr.
Huang.
I would like to ask about my girlfriend who has been taking Mestranol for nearly a year.
This month, she has been quite busy and missed the start of her next pack.
Today is already the third day since she was supposed to start.
Is it okay for her to begin taking it today? Also, what could happen if she suddenly stops taking it? She primarily uses it for menstrual regulation, and we always use condoms during sexual intercourse.

Xiao, 20~29 year old female. Ask Date: 2019/09/19

Dr. Huang Jianzhong reply Obstetrics and Gynecology


I have been taking Medroxyprogesterone for almost a year, but this month has been a bit busy, and I missed the time to start the next pack.
Today is already the third day.
Is it okay to start taking it today? What would happen if I suddenly stop taking it? Answer: It is fine to start taking it today.
Note: The primary purpose of taking it is for menstrual regulation, and I always use protection during sexual intercourse.

Reply Date: 2019/09/19

More Info


When it comes to starting or resuming birth control pills, there are several important factors to consider, especially if there has been a delay in taking the pills as scheduled. In your case, since your girlfriend has missed the start of her new pack of birth control pills (in this case, "美適儂" or "Mirelle"), and it has been three days since she was supposed to start, here are some key points to keep in mind:
1. Starting After a Delay: If your girlfriend has missed taking her birth control pills for three days, she can still start taking them today. However, it is important to note that the effectiveness of the pills may be compromised, especially if she has missed more than one pill. The general recommendation is to take the missed pill as soon as she remembers, and then continue taking the remaining pills at the usual time. If she has missed multiple pills, she should refer to the specific instructions provided with her medication or consult her healthcare provider for guidance.

2. Effectiveness and Protection: If she starts taking the pills again after missing several days, she may not be fully protected against pregnancy for the first seven days of taking the pills. During this time, it is advisable to use an additional form of contraception, such as condoms, to ensure protection against unintended pregnancy.

3. What Happens If She Stops Taking the Pills: If your girlfriend decides to stop taking the birth control pills altogether, she may experience a return of her menstrual cycle and any symptoms that were previously managed by the pills, such as irregular periods or menstrual cramps. Additionally, stopping the pills can lead to changes in her hormonal balance, which may result in side effects like mood swings, acne, or changes in weight. It's important to discuss any concerns about stopping the medication with a healthcare provider.

4. Consulting a Healthcare Provider: Given that your girlfriend has been using the pills primarily for menstrual regulation, it would be beneficial for her to consult with her healthcare provider. They can provide personalized advice based on her medical history, the specific birth control method she is using, and her current health status. They can also discuss alternative methods of contraception if she is considering stopping the pills.

5. Importance of Consistency: Birth control pills are most effective when taken consistently at the same time every day. If your girlfriend finds it challenging to remember to take her pills, she might want to consider setting a daily reminder or exploring other contraceptive options that require less frequent attention, such as the birth control patch, injection, or intrauterine device (IUD).

6. Monitoring for Side Effects: After resuming the pills, it’s important for her to monitor her body for any side effects or changes. Some women may experience nausea, headaches, or mood changes when they start or restart hormonal contraceptives. If she experiences severe side effects or has concerns, she should reach out to her healthcare provider.

In summary, while your girlfriend can start taking her birth control pills again after a three-day delay, she should be aware of the potential decrease in effectiveness and the need for additional contraceptive measures during the first week. Consulting with a healthcare provider will provide her with the best guidance tailored to her situation.

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