Am I at Risk of Pregnancy After Unprotected Intercourse?

Is there a chance of getting pregnant?

Hello, I would like to ask about my situation.
I had sexual intercourse on April 5th without protection, but it was only friction for about ten times before withdrawal, and there was no ejaculation.
My menstrual periods were: February 14-19 and March 19-25.
According to the app's calculations, April 5th falls within the fertile window.
Because I was concerned, I took Plan B (Levonorgestrel) on the morning of April 8th, and I also had unprotected intercourse within 72 hours after taking the medication.
Is it likely that I could become pregnant? Thank you.

Tanya, 10~19 year old female. Ask Date: 2020/04/08

Dr. Cao Guotao reply Obstetrics and Gynecology

Hello, I have replied.
Wishing you good health.

Reply Date: 2020/04/08

More Info

When it comes to assessing the risk of pregnancy after unprotected intercourse, several factors need to be considered, including the timing of the menstrual cycle, the nature of the sexual activity, and the use of emergency contraception. Based on your description, you had sexual intercourse on April 5 without a condom, but you did not ejaculate inside. You also mentioned that you took emergency contraception (Plan B) on April 8, which is within the recommended time frame for such medication.

Firstly, understanding your menstrual cycle is crucial. You indicated that your last two menstrual periods were from February 14 to February 19 and from March 19 to March 25. Based on this information, your cycle appears to be approximately 28 to 31 days long. The timing of ovulation typically occurs around 14 days before the start of your next period. If your cycle is regular, ovulation would likely occur around mid-cycle, which could be around April 2 to April 5, depending on your specific cycle length.

Since you had intercourse on April 5, which is close to your estimated ovulation date, there is a potential risk of pregnancy. However, the fact that you did not ejaculate inside reduces this risk significantly. Sperm can survive in the female reproductive tract for up to five days, so if ovulation occurred shortly after your intercourse, there could still be a chance of fertilization.

Taking emergency contraception like Plan B within 72 hours after unprotected intercourse is a proactive step to reduce the risk of pregnancy. Plan B works primarily by delaying ovulation, preventing fertilization, or preventing a fertilized egg from implanting in the uterus. The sooner you take it after unprotected intercourse, the more effective it is. Since you took it on April 8, you are within the effective window for the medication.

In summary, while there is a risk of pregnancy due to the timing of your intercourse relative to your ovulation, the fact that you did not ejaculate inside and that you took emergency contraception significantly lowers that risk. It is important to monitor your menstrual cycle closely in the following weeks. If your period is delayed by more than a week from the expected date, it would be advisable to take a pregnancy test for confirmation.

Additionally, if you continue to experience anxiety regarding pregnancy or your menstrual cycle, it may be beneficial to consult with a healthcare provider. They can provide personalized advice and support, as well as discuss more reliable contraceptive methods for the future to help alleviate your concerns. Remember, it's always better to be informed and prepared when it comes to sexual health.

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