Pregnancy Chances After Unprotected Intercourse and Emergency Contraception

Pregnancy probability

Hello, doctor.
I had unprotected intercourse with my boyfriend two days after my period ended (on May 13) and he ejaculated inside me.
Immediately after, I took a morning-after pill.
The next day, we had unprotected intercourse twice again, but without ejaculation, and I took another morning-after pill just to be safe.
Currently, I have white discharge when I go to the bathroom, but there is no semen or any unusual odor.
Is this normal? Additionally, I would like to ask how long after taking the morning-after pill can I start taking regular birth control pills? Thank you!

Niming, 20~29 year old female. Ask Date: 2024/05/17

Dr. Chen Zhiyu reply Obstetrics and Gynecology

The components of emergency contraceptive pills vary, and the timing of administration also differs.
Generally, it is best to take them as soon as possible for optimal effectiveness.
However, emergency contraceptive pills are not 100% effective.
If your period is delayed, it is still necessary to take a pregnancy test to confirm whether you are pregnant.
For preemptive contraceptive options, it is advisable to consult a physician at a clinic.
Thank you.

Reply Date: 2024/05/17

More Info

When it comes to understanding pregnancy chances after unprotected intercourse and the use of emergency contraception, it's important to consider several factors, including the timing of ovulation, the effectiveness of emergency contraception, and the body's response to hormonal changes.

In your situation, you had unprotected intercourse shortly after your menstrual period ended, followed by the use of emergency contraception (EC). Emergency contraceptive pills (ECPs) are most effective when taken as soon as possible after unprotected intercourse, ideally within 72 hours, but they can be effective up to 5 days (120 hours) after. The effectiveness of ECPs decreases the longer you wait to take them after unprotected intercourse. Since you took the ECP shortly after the incident, you have significantly reduced your chances of becoming pregnant.

The presence of white discharge without any unusual odor or color is generally considered normal and can be attributed to hormonal changes in your body, especially after taking emergency contraception. ECPs can cause temporary changes in your menstrual cycle, including alterations in discharge, and may lead to side effects such as nausea, fatigue, or changes in your menstrual pattern.
Regarding the question of when to start taking regular birth control pills after using emergency contraception, it is generally recommended to wait until your next menstrual cycle begins. However, you can start taking the regular birth control pills immediately after taking the emergency contraceptive if you wish. Starting the regular birth control method right away can help provide ongoing protection against pregnancy. Just be sure to use additional contraception (like condoms) for the first seven days of taking the regular birth control pills to ensure maximum effectiveness.

It's also important to monitor your body for any unusual symptoms after taking emergency contraception. If you experience severe abdominal pain, heavy bleeding, or any other concerning symptoms, it is advisable to consult a healthcare provider.
In summary, your chances of pregnancy after taking emergency contraception are low, especially since you took it promptly after unprotected intercourse. The white discharge you are experiencing is likely a normal response to hormonal changes. You can start taking regular birth control pills immediately after using emergency contraception, but be sure to use additional protection for the first week. If you have any further concerns or experience unusual symptoms, don't hesitate to reach out to a healthcare professional for personalized advice.

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