Do I Need Emergency Contraception After Unprotected Intercourse? - Obstetrics and Gynecology

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Emergency contraceptive pill


I would like to ask the doctor, I have been taking oral contraceptives regularly since I started my first course in April this year.
I stopped for one month in July and resumed in August, continuing until now.
Today (September 12), I had intercourse with my partner without using a condom, and some semen was ejaculated inside.
I would like to ask the doctor: 1.
Do I still need to take emergency contraception? 2.
What is the likelihood of pregnancy in this situation?

X, 10~19 year old female. Ask Date: 2022/09/12

Dr. Zhang Kunmin reply Obstetrics and Gynecology


Hello, the combined oral contraceptive (COC) must be taken at the same time every day.
When taken correctly, it can achieve a 99% effectiveness in preventing pregnancy.
If you have not missed any doses, there is no need to take emergency contraception.
Thank you! Wishing you safety and health, Dr.
Chang.

Reply Date: 2022/09/12

More Info


When it comes to the question of whether you need emergency contraception after unprotected intercourse, there are several factors to consider. Based on your situation, here are the answers to your questions:
1. Do I need to take emergency contraception?
Since you have been consistently taking your regular birth control pills, the likelihood of pregnancy is significantly reduced. Birth control pills are designed to prevent ovulation, and if taken correctly, they are highly effective. However, if you missed any doses or did not take your pills as directed, the effectiveness may be compromised. If you are unsure about your adherence to the pill regimen, it may be prudent to consider taking emergency contraception (EC) as a precaution. Emergency contraception is most effective when taken as soon as possible after unprotected intercourse, ideally within 72 hours, but some forms can be effective up to 5 days after.

2. What is the likelihood of pregnancy?
The risk of pregnancy after unprotected intercourse while on birth control pills is generally low, especially if you have been taking them consistently. However, if there was any lapse in your pill-taking routine, or if you have recently restarted the pill after a break, the risk may be higher. The chance of pregnancy can also depend on where you are in your menstrual cycle. If you had unprotected intercourse during your fertile window (typically around ovulation), the risk of pregnancy increases.


Additional Considerations:
- Timing of the Pill: If you have been taking your birth control pills regularly and have not missed any doses, your risk of pregnancy is minimal. Birth control pills work best when taken at the same time every day.

- Emergency Contraception Options: If you decide to take emergency contraception, there are two main types:
- Levonorgestrel (Plan B One-Step): This is available over-the-counter and is most effective when taken within 72 hours after unprotected intercourse.

- Ulipristal Acetate (Ella): This is a prescription medication that can be taken up to 120 hours after unprotected intercourse and is effective regardless of where you are in your cycle.


- Consultation with a Healthcare Provider: If you are uncertain about your risk of pregnancy or have questions about your birth control method, it is always a good idea to consult with a healthcare provider. They can provide personalized advice based on your medical history and current situation.

- Follow-Up: If you do not get your period within a week of when you expect it, consider taking a pregnancy test to confirm whether or not you are pregnant.

In summary, if you have been taking your birth control pills consistently, the need for emergency contraception may not be necessary, but if there is any doubt about your adherence to the regimen, it may be wise to take it as a precaution. Always consult with a healthcare provider for the best course of action tailored to your specific circumstances.

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