Pregnancy Chances After Unprotected Intercourse: Key Insights - Obstetrics and Gynecology

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What is the likelihood of getting pregnant?


Doctor, I apologize for the additional information.
I want to clarify that my last menstrual period was from June 5 to June 11.
Yesterday, June 17, was my ovulation period (the app indicated a high chance of pregnancy).
Around midnight, between 12 and 1 AM, my boyfriend's condom was not put on properly (it was only a short time after we started), and we noticed it was not on correctly (it was covering above the foreskin) and immediately withdrew (there was no ejaculation).
Prior to that, we had intercourse about an hour earlier with a properly worn condom.
The next day at 11 AM, I immediately bought and took an Ella emergency contraceptive pill (approximately 12 hours later).
We also had intercourse again around 8-9 AM with a properly worn condom.
I would like to ask the doctor if the chances of pregnancy are high in this situation (I'm worried about pre-ejaculate fluid possibly containing sperm).

Ms. J, 10~19 year old female. Ask Date: 2022/06/18

Dr. Cao Guotao reply Obstetrics and Gynecology


Hello, the probability should be very low.
Wishing you good health.

Reply Date: 2022/06/18

More Info


Understanding the chances of pregnancy after unprotected intercourse is a common concern for many individuals. In your situation, several factors come into play that can help clarify your risk of becoming pregnant.

Firstly, let's consider the timing of your menstrual cycle. You mentioned that your last menstrual period started on June 5 and ended on June 11, with your ovulation occurring around June 17. This timing is crucial because the likelihood of conception is highest during the ovulation period, which typically occurs about 14 days before the start of your next period. Since you had unprotected intercourse during your ovulation window, there is a potential risk of pregnancy.

Regarding the incident where the condom was not properly used, it is important to note that pre-ejaculate fluid (pre-cum) can contain sperm. Although the risk of pregnancy from pre-ejaculate is lower than from ejaculate, it is still a possibility. Since you indicated that there was no ejaculation during the incident, the risk may be somewhat reduced, but it is not eliminated entirely.

You took emergency contraception (Ella) within 12 hours of the incident, which is a proactive step. Ella is effective in preventing pregnancy when taken within 120 hours (5 days) after unprotected intercourse, and it works primarily by delaying ovulation. Since you took it promptly, it significantly reduces your chances of becoming pregnant from that encounter.

However, it is essential to understand that no contraceptive method is 100% effective. The effectiveness of emergency contraception can vary based on factors such as your body weight and where you are in your menstrual cycle. In general, the sooner you take emergency contraception after unprotected intercourse, the more effective it will be.

In summary, while there is a possibility of pregnancy due to the timing of your ovulation and the incident with the condom, your immediate action of taking emergency contraception greatly reduces that risk. If you experience any unusual symptoms or if your period is significantly delayed, it would be wise to take a pregnancy test or consult with a healthcare provider for further guidance.

Additionally, if you find yourself frequently concerned about unprotected intercourse and the risk of pregnancy, it may be beneficial to discuss long-term contraceptive options with a healthcare professional. There are various methods available, including hormonal birth control, intrauterine devices (IUDs), and barrier methods, which can help you manage your reproductive health more effectively.

In conclusion, while the chances of pregnancy exist in your scenario, your timely use of emergency contraception significantly mitigates that risk. Always consider consulting with a healthcare provider for personalized advice and to explore ongoing contraceptive options that suit your lifestyle and needs.

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