Will Taking Emergency Contraceptive Pills Affect My Next Period?

Taking emergency contraception can cause bleeding, but it does not guarantee that your next menstrual period will come at the expected time. Some individuals may experience changes in their menstrual cycle after taking the pill, including earlier or later periods. If your period is more than a week late, it is advisable to take a pregnancy test?

I took the emergency contraceptive pill on November 14, and six days later (on November 20), I experienced some bleeding (which was slightly less than my usual menstrual flow).
I have regular menstrual cycles, and my last period started on November 7.
Should I expect my next period around December 7, or will it be delayed until December 20 (the day I experienced bleeding after taking the pill)? Thank you for your response, doctor.

julia, 10~19 year old female. Ask Date: 2016/11/29

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.

Reply Date: 2016/11/29

More Info

Taking emergency contraceptive pills (ECPs) can indeed affect your menstrual cycle, and it's important to understand how this works. ECPs, such as Plan B or Ella, are designed to prevent pregnancy after unprotected intercourse, and they can cause some temporary changes in your menstrual cycle.

When you take ECPs, they can lead to a variety of side effects, including changes in your next period. Some women may experience earlier or later periods, and the flow may be lighter or heavier than usual. In your case, you mentioned that you experienced some bleeding six days after taking the ECP, which is not uncommon. This bleeding can be a side effect of the hormone in the ECP, and it may not necessarily be a full menstrual period.

Typically, after taking ECPs, your next period may come earlier or later than expected. Since you took the ECP on November 14 and had some bleeding on November 20, this could be a side effect of the medication rather than a regular menstrual period. Your regular menstrual cycle is usually around 28 days, so if your last period started on November 7, you would expect your next period around December 7. However, because of the ECP, it is possible that your cycle could be disrupted, and you might not see your period until closer to December 20 or even later.

It's also worth noting that stress, changes in routine, and other factors can influence your menstrual cycle. If your period does not arrive when expected, or if you have concerns about your menstrual cycle or potential pregnancy, it is advisable to take a pregnancy test or consult with a healthcare provider for further guidance.

In summary, taking emergency contraceptive pills can affect your menstrual cycle, and it's not unusual to experience changes in timing and flow. If you have any concerns or if your period is significantly delayed, it would be wise to reach out to your healthcare provider for personalized advice and support.

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Does Taking Emergency Contraceptive Pills Affect Your Next Period?

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!

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