Menstrual Regulation and Birth Control Options - Obstetrics and Gynecology

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Menstrual induction and contraception?


The last menstrual period was from September 1 to September 7, and the next period is expected around September 29, as I will be traveling abroad to meet my boyfriend on October 2 (and I would prefer not to have my period during that time).
I visited a gynecologist on September 18 and expressed my desire to induce my period early.
The doctor informed me that the timing was very close, and the effectiveness might not be good, but ultimately prescribed medication to induce menstruation.
I am currently on the third day of the medication (feeling bloated) and did not ask about contraception, so I would like to inquire online.
*Q: If I want to start taking oral contraceptives for the first time, should I begin taking them on the first day of my period or the fifth day? Or do I need to go to a gynecologist to get a prescription? Can I buy them at a pharmacy? (There is no gynecologist in my town, and I would need to travel to the city.)*
*Q: If the period induction is successful, and I expect my period to come on September 24-25, can I start taking the contraceptive pill on the first day of my period? Do I need to take it for seven days before it becomes effective? If I have intercourse with ejaculation after October 3, will it be safe?*
I am preparing to take oral contraceptives for long-term contraception.
I have mild polycystic ovary syndrome, and my periods can sometimes be irregular, requiring medication to induce and regulate them.
If my menstrual cycle is irregular, will the contraceptive be effective? I apologize, as this is my first time considering taking oral contraceptives for contraception, and I currently do not wish to have children.
There are many conflicting opinions online, so I would appreciate your guidance! Thank you.

Katrina, 20~29 year old female. Ask Date: 2017/09/20

Dr. Huang Jianzhong reply Obstetrics and Gynecology


The last menstrual period was from September 1 to September 7, and the next period is expected around September 29, as I will be traveling abroad to meet my boyfriend on October 2 (I would prefer not to have my period during that time).
I visited a gynecologist on September 18 and informed the doctor that I wanted to induce my period early.
The doctor mentioned that the timing was very close, and the effectiveness might not be good, but prescribed medication to induce my period.
I am currently on the third day of the medication (feeling bloated).
*Q: If this is my first time wanting to take long-term oral contraceptives, should I start taking them on the first day of my period or the fifth day? Or do I need to go to a gynecologist to get a prescription? Can I buy them at a pharmacy? (Since there is no gynecologist in my town, I would have to travel to the city.)
Ans: For oral contraceptives, some are taken on the first day of the period, while others are taken on the fifth day, so it depends on the instructions provided.*
*Q: If the period induction is successful, it is estimated that my period will come on September 24-25! Can I start taking the contraceptive pills on the first day? Do I need to take them for a full seven days before they become effective? Is it safe to have unprotected intercourse after October 3?
Ans: After October 3, if you have unprotected intercourse, it should be safe.*
I am preparing to take long-term contraceptive pills for contraception, and I have mild polycystic ovary syndrome, which sometimes causes my period to be delayed or absent, requiring medication to induce and regulate my cycle.
If my periods are irregular, will the contraceptive be effective?
Ans: The contraceptive will be effective.

Reply Date: 2017/09/20

More Info


When it comes to understanding menstrual regulation and birth control options, it's essential to have accurate information and guidance from healthcare professionals. Based on your situation, let's break down your questions regarding the use of hormonal contraceptives, particularly birth control pills, and the timing of their use in relation to your menstrual cycle.


Starting Birth Control Pills
1. When to Start Taking Birth Control Pills:
Typically, if you are starting a new pack of combined oral contraceptives (the most common type), you can begin taking the pills either on the first day of your menstrual period or on the first Sunday after your period starts. If you start on the first day of your period, the pills will provide immediate contraceptive protection. If you start on a Sunday or any other day, it is generally recommended to use additional contraception (like condoms) for the first seven days of taking the pills to ensure you are fully protected against pregnancy.

2. Consulting a Healthcare Provider:
While some birth control pills can be purchased over-the-counter in certain regions, it is always advisable to consult with a healthcare provider before starting any hormonal contraceptive. This is especially important if you have underlying health conditions, such as polycystic ovary syndrome (PCOS), which can affect your menstrual cycle and overall hormonal balance. A healthcare provider can help you choose the right type of birth control pill that suits your health needs and lifestyle.


Timing and Effectiveness
3. Effectiveness of Birth Control Pills:
If you successfully induce your period and start taking the birth control pills on the first day of your period, you will have immediate contraceptive protection. However, if you start taking the pills at a different time in your cycle, remember that it typically takes about seven days for the pills to become fully effective. Therefore, if you plan to have unprotected intercourse shortly after starting the pills, using a backup method of contraception during that initial week is crucial.

4. Impact of Irregular Cycles:
Since you mentioned having irregular menstrual cycles due to PCOS, it's important to note that hormonal contraceptives can help regulate your cycle over time. However, the effectiveness of the pills in preventing pregnancy is not diminished by irregular cycles; rather, the irregularity may affect when you start taking the pills. Consistency in taking the pill daily is key to maintaining its effectiveness.


Additional Considerations
5. Potential Side Effects:
As with any medication, birth control pills can have side effects, including nausea, breast tenderness, and mood changes. It's important to monitor how your body responds to the pills and communicate any concerns with your healthcare provider.

6. Long-term Use and Monitoring:
If you plan to use birth control pills long-term, regular check-ups with your healthcare provider are recommended. They can monitor your health, adjust your prescription if necessary, and provide guidance on managing any side effects or complications.

In summary, starting birth control pills can be a straightforward process, but it is essential to do so under the guidance of a healthcare professional, especially considering your history of irregular cycles. Always ensure you understand how to use the pills effectively and when additional contraceptive methods may be necessary. If you have any further questions or concerns, don't hesitate to reach out to a healthcare provider for personalized advice.

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If you want to regulate your menstrual cycle, what medication would be better? Answer: Birth control pills. If you want a medication that can also provide contraceptive effects for regulating your menstrual cycle, is taking birth control pills the best option? Answer: Yes.

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