Does Taking Emergency Contraceptive Pills Affect Your Next Period? - Obstetrics and Gynecology

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Emergency contraceptive pills (ECPs)


Hello, doctor.
I would like to ask if taking emergency contraception during the ovulation period will affect the next menstrual cycle? Also, if I have taken it twice in a year, what is the best way to manage it? Thank you!

33, 20~29 year old female. Ask Date: 2018/11/15

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, emergency contraceptive pills can sometimes cause irregular menstruation; it is advisable to monitor the situation.
It is best to use preventive measures beforehand, as emergency contraceptive pills will be expelled by the body.
Wishing you good health.

Reply Date: 2018/11/15

More Info


Taking emergency contraceptive pills (ECPs), commonly known as "morning-after pills," can indeed have an impact on your menstrual cycle, particularly the timing and flow of your next period. ECPs, such as those containing levonorgestrel or ulipristal acetate, work primarily by delaying ovulation, preventing fertilization, or inhibiting implantation of a fertilized egg. However, their hormonal effects can also influence your menstrual cycle in various ways.

When you take ECPs during your ovulation period, it can lead to changes in your menstrual cycle. Some women may experience an earlier or later onset of their next period, while others may notice changes in the flow, such as heavier or lighter bleeding. It is not uncommon for the next period to be delayed by a few days or even a week after taking ECPs. In some cases, women report experiencing spotting or irregular bleeding after taking the pills, which can be mistaken for their period.

If you have taken ECPs twice within a year, it is essential to understand that while these pills are safe for occasional use, they are not intended for regular contraceptive use. Frequent use of ECPs can lead to more pronounced changes in your menstrual cycle. If you find that your periods are consistently irregular or if you have concerns about your menstrual health, it is advisable to consult with a healthcare provider. They can help determine if there are underlying issues that need to be addressed or if a more reliable form of contraception would be more suitable for your needs.

In terms of "how to get rid of" the effects of ECPs, it is important to note that there is no specific method to "flush out" the hormones from your system. The best approach is to allow your body to adjust naturally. Maintaining a healthy lifestyle, managing stress, and keeping track of your menstrual cycle can help you better understand your body's responses. If you experience significant changes or discomfort, seeking medical advice is always a prudent step.

In summary, taking emergency contraceptive pills can affect your next period, leading to changes in timing and flow. If you have taken these pills multiple times and are concerned about your menstrual health, it is best to consult with a healthcare professional for personalized advice and guidance. They can provide you with information on effective contraception options and help you manage any menstrual irregularities you may experience.

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Dr. Cao Guotao reply Obstetrics and Gynecology
Hello, emergency contraceptive pills can sometimes cause irregular menstruation. If your next period is expected around December 7, it is best to take preventive measures beforehand. Wishing you good health.

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