Can You Take Birth Control Pills Before Your Period Starts? - Obstetrics and Gynecology

More Info

---

When it comes to taking birth control pills, timing and understanding how they work are crucial for effective contraception. Birth control pills, also known as oral contraceptives, are designed to prevent ovulation, thicken cervical mucus, and thin the uterine lining, thereby reducing the likelihood of pregnancy.
If you are considering starting birth control pills before your period begins, it is important to know that the effectiveness of the pills can depend on when you start taking them in relation to your menstrual cycle. Most birth control pills come in a 28-day pack, with 21 active pills and 7 placebo pills. If you start taking the active pills at the beginning of your cycle (the first day of your period), you will be protected against pregnancy right away. However, if you start taking the pills at a different time in your cycle, it may take some time for the pills to become effective.

For those who start taking the pill at a time other than the first day of their period, it is generally recommended to use an additional form of contraception, such as condoms, for at least the first seven days of taking the pill. This is because it can take about seven days for the hormones in the pill to build up in your system and provide effective contraception.
In your case, if you are planning to take the birth control pills now, 17 days before your expected period, you should be aware that you may not have immediate protection against pregnancy. If you start taking the pills today, you will likely need to use an additional contraceptive method for the first week to ensure you are adequately protected.
It is also worth noting that if you have taken emergency contraception (the "morning-after pill") recently, it is advisable to consult with a healthcare provider before starting regular birth control pills. This is because emergency contraception can affect your menstrual cycle and may influence when you should start taking the pills.

In summary, while you can start taking birth control pills before your period starts, you should be aware of the timing and potential need for additional contraception during the initial days of use. Always consult with a healthcare provider for personalized advice and to discuss the best contraceptive options for your specific situation. They can provide guidance based on your health history and any other medications you may be taking.