Emergency Contraception: Effectiveness and Next Steps After Use

Emergency contraceptive pill

Since I was taking oral contraceptives and stopped for 9 days in April, I had unprotected intercourse with ejaculation on the first day of my ovulation period around 1 AM on April 18.
I took emergency contraception the next day around noon.
Will this be effective in preventing pregnancy? If I get my period after taking the emergency contraception, can I continue taking the oral contraceptives on the fifth day of my period?

Wei, 20~29 year old female. Ask Date: 2023/04/18

Dr. Chen Zhiyu reply Obstetrics and Gynecology

Hello, oral contraceptives need to be taken regularly to be effective.
It is advisable to consult with a gynecologist.
Thank you.

Reply Date: 2023/04/18

More Info

Emergency contraception (EC) is a crucial option for individuals who may have had unprotected intercourse or contraceptive failure. In your case, you mentioned that you were on a regular oral contraceptive but had a break of 9 days, which could have affected your contraceptive protection. You then had unprotected intercourse during your ovulation period and took emergency contraception the following day.
The effectiveness of emergency contraception, particularly when taken within 72 hours of unprotected intercourse, is generally high, but it is not 100% guaranteed. The sooner you take it after the incident, the more effective it is. Since you took the emergency contraception within 24 hours, you maximized your chances of preventing pregnancy.
If you experience your period after taking the emergency contraception, it is a good sign that the method worked. The arrival of your period typically indicates that you are not pregnant. However, it is important to note that emergency contraception can cause some changes in your menstrual cycle, including earlier or later onset of your period, and it may also affect the flow and duration of your menstrual bleeding.

Regarding your question about resuming your regular oral contraceptive after your period, it is generally safe to continue taking your regular birth control pills after your menstrual cycle resumes. You can start taking your birth control pills again on the fifth day of your period, as long as you follow the instructions provided with your specific contraceptive method.
It's also important to remember that if you have taken emergency contraception, you should continue to use your regular contraceptive method consistently to ensure ongoing protection against unintended pregnancy. If you have any concerns about your menstrual cycle or the effectiveness of your contraceptive methods, it is advisable to consult with a healthcare provider for personalized guidance.

In summary, taking emergency contraception after unprotected intercourse during your ovulation period is a proactive step. If your period arrives after taking the emergency contraception, it is a positive indication. You can resume your regular birth control pills after your period, ensuring that you maintain effective contraceptive coverage moving forward. Always consult with a healthcare professional if you have any doubts or questions about your contraceptive methods or reproductive health.

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