Preemptive Birth Control Pills: Side Effects and Effectiveness

About emergency contraceptive pills?

Hello, Doctor.
I have been taking oral contraceptives for over 8 months.
During the course, I experienced bleeding, which led me to switch brands three times.
However, this month when I returned to a brand I had previously used, I started bleeding the day after I resumed taking it (about the amount of a panty liner), and I am still bleeding on the ninth day.
I would like to ask the doctor: 1.
Will the continuous bleeding affect the contraceptive effectiveness? 2.
Since I have previously taken this brand and am now experiencing bleeding along with feelings of depression and decreased appetite, could this be a side effect of the contraceptive? 3.
I visited a gynecologist, and the doctor prescribed progesterone to take alongside the oral contraceptive.
Should I use condoms for sexual intercourse this month? Thank you, Doctor!

Hsin, 30~39 year old female. Ask Date: 2023/07/01

Dr. Cao Guotao reply Obstetrics and Gynecology

Hello, it still has contraceptive effects.
It is recommended to switch back to a birth control pill that does not cause bleeding next time.
Wishing you good health.

Reply Date: 2023/07/01

More Info

When it comes to understanding preemptive birth control pills, their side effects, and effectiveness, it is essential to consider various factors, including the specific formulation of the pill, individual health conditions, and any concurrent medications.
1. Impact of Continuous Bleeding on Birth Control Effectiveness: Continuous bleeding while on birth control pills, often referred to as breakthrough bleeding, can be concerning but does not necessarily compromise the effectiveness of the contraceptive. Birth control pills work primarily by preventing ovulation, thickening cervical mucus, and thinning the uterine lining. Breakthrough bleeding can occur for various reasons, including hormonal fluctuations, stress, or changes in the type of pill being used. If you are consistently taking your pills as directed, the contraceptive effect should remain intact. However, if the bleeding persists or is heavy, it is advisable to consult your healthcare provider to rule out any underlying issues or to consider switching to a different formulation.

2. Side Effects of Birth Control Pills: The symptoms you are experiencing, such as mood swings and decreased appetite, can indeed be side effects of hormonal contraceptives. Birth control pills contain synthetic hormones that can affect mood and appetite due to their influence on the body's hormonal balance. It is not uncommon for individuals to experience side effects when starting a new pill or switching back to a previous one. If these side effects are significant or bothersome, it is crucial to discuss them with your healthcare provider. They may recommend adjusting the dosage, switching to a different formulation, or exploring non-hormonal contraceptive options.

3. Use of Additional Contraceptive Methods: If your healthcare provider has prescribed progesterone (often referred to as "黄体素" or luteal hormone) to be taken alongside your birth control pills, it is essential to follow their guidance. The addition of progesterone may be intended to help stabilize your cycle and reduce breakthrough bleeding. However, if you are experiencing any irregularities or have concerns about the effectiveness of your birth control during this time, using a backup method, such as condoms, is a prudent approach. This can provide additional protection against unintended pregnancy, especially if you are unsure about the current effectiveness of your birth control method due to the bleeding.

In summary, while breakthrough bleeding is a common occurrence and does not typically affect the contraceptive effectiveness of birth control pills, it is essential to monitor your symptoms and communicate with your healthcare provider. They can help determine the best course of action, whether that involves adjusting your medication or providing additional support for managing side effects. Always prioritize open communication with your healthcare provider to ensure that your contraceptive method aligns with your health needs and lifestyle.

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