What Happens If You Take Emergency Contraceptive Pills for 5 Extra Days?

I took the emergency contraceptive pill for five days?

I was supposed to stop the medication last Sunday, but I didn't notice and took it for an additional 5 days.
I just realized today.
What will happen? P.S.
My menstrual cycle has not started yet.

Yu Shen, 10~19 year old female. Ask Date: 2020/12/26

Dr. Huang Yuande reply Obstetrics and Gynecology

It is recommended to stop the medication and wait for the onset of menstruation.
During this period, please use alternative methods of contraception.

Reply Date: 2020/12/26

More Info

Taking emergency contraceptive pills (ECPs) beyond the recommended timeframe can lead to several outcomes, but it is essential to understand the context and the specific medication involved. ECPs, such as levonorgestrel (Plan B) or ulipristal acetate (ella), are designed to prevent pregnancy after unprotected intercourse or contraceptive failure. They are most effective when taken as soon as possible after the event, ideally within 72 hours for levonorgestrel and up to 120 hours for ulipristal acetate.

If you accidentally took ECPs for an additional five days beyond the recommended usage, here are some potential effects and considerations:
1. Hormonal Effects: ECPs contain hormones that can disrupt your normal menstrual cycle. Taking them for an extended period may lead to hormonal imbalances, which could cause side effects such as nausea, fatigue, headaches, or breast tenderness. These symptoms are generally temporary and should resolve once the hormones are out of your system.

2. Menstrual Changes: You may experience changes in your menstrual cycle, including delayed menstruation, heavier or lighter bleeding, or spotting. Since you mentioned that your menstrual cycle (MC) has not yet arrived, it is possible that the extra days of ECPs could contribute to a delay. It is important to note that ECPs can cause your next period to be earlier or later than expected.

3. Pregnancy Risk: If you took ECPs after unprotected intercourse, the primary concern is whether they were effective in preventing pregnancy. If you have taken them correctly within the recommended time frame, the risk of pregnancy is significantly reduced. However, if you continue to have concerns about potential pregnancy, consider taking a home pregnancy test if your period does not arrive within a week or two after your expected date.

4. Consulting a Healthcare Provider: It is advisable to consult with a healthcare provider if you have taken ECPs for longer than recommended. They can provide personalized advice based on your health history and current situation. They may also help you understand any potential side effects and what to expect moving forward.

5. Future Use: If you find yourself needing emergency contraception again in the future, remember that ECPs are intended for occasional use and not as a regular contraceptive method. If you are seeking a more reliable form of contraception, consider discussing long-term options with your healthcare provider.

In summary, taking emergency contraceptive pills for five extra days may lead to temporary hormonal side effects and changes in your menstrual cycle. It is unlikely to cause serious harm, but it is essential to monitor your symptoms and consult a healthcare provider for further guidance. If you have any concerns about pregnancy or your menstrual cycle, a healthcare professional can provide the best advice tailored to your situation.

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