Taking both pre-exposure prophylaxis (PrEP) and post-exposure prophylaxis (PEP) together?
Hello, doctor.
I took the emergency contraceptive pill for the first time on May 14, and then I took a medication to delay my period that evening.
Three days later, there was ejaculation inside me, and I immediately took the emergency contraceptive pill.
I would like to know if it is normal for my abdomen to feel bloated and uncomfortable.
Will I still get my period this month? My period was originally due on May 17, and it is usually regular.
Ms. Huang, 20~29 year old female. Ask Date: 2023/05/19
Dr. Lin Manying reply Obstetrics and Gynecology
Hello Ms.
Huang: It is advised not to self-medicate with these drugs, as they may cause irregular menstruation.
Your menstrual cycle may not be regular, as taking these medications simultaneously can lead to menstrual disturbances.
The Ministry of Health and Welfare is concerned about your health.
Reply Date: 2023/05/19
More Info
When it comes to the use of pre- and post-coital contraceptives, it is essential to understand how these medications work and what effects they may have on your body. Based on your description, you took a pre-coital contraceptive on May 14, followed by an emergency contraceptive pill after unprotected intercourse. It is important to note that both types of contraceptives can affect your menstrual cycle and may cause some side effects.
Firstly, the pre-coital contraceptive pills, commonly known as birth control pills, are designed to prevent ovulation and make it more difficult for sperm to fertilize an egg. When taken correctly, they are highly effective in preventing pregnancy. However, if you took the emergency contraceptive pill (often referred to as the "morning-after pill") after having unprotected sex, this medication is intended to prevent pregnancy after the fact. It works primarily by delaying ovulation, preventing fertilization, or preventing a fertilized egg from implanting in the uterus.
Now, regarding the symptoms you are experiencing, such as abdominal bloating or discomfort, these can be common side effects of hormonal contraceptives. Both pre-coital and post-coital contraceptives can lead to hormonal fluctuations in your body, which may result in symptoms like bloating, breast tenderness, nausea, or changes in your menstrual cycle. These side effects are generally temporary and should subside as your body adjusts to the hormones.
As for your menstrual cycle, taking emergency contraception can lead to changes in the timing of your period. It is not uncommon for your period to be delayed or to come earlier than expected after taking emergency contraceptives. Since your period was originally expected on May 17 and you have a history of regular cycles, it is possible that the hormonal changes induced by the contraceptives could cause a delay. However, if your period does not arrive within a week of the expected date, it would be advisable to take a pregnancy test to rule out the possibility of pregnancy.
In summary, experiencing bloating and discomfort after taking both pre- and post-coital contraceptives can be considered normal, as these medications can cause hormonal changes in your body. It is also possible that your menstrual cycle may be affected, leading to a delay in your period. If you have concerns about your symptoms or if your period is significantly delayed, it is always a good idea to consult with a healthcare provider for personalized advice and guidance. They can help you understand your symptoms better and provide reassurance or further evaluation if necessary.
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