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 and I withdrew before 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, the chances of pregnancy should be low; just monitor the situation.
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 mentioned that there was no ejaculation inside. This is an important detail because the risk of pregnancy is significantly lower if ejaculation does not occur inside the vagina. However, it is essential to note that pre-ejaculate fluid (pre-cum) can contain sperm, and thus, there is still a risk of pregnancy even if ejaculation did not happen inside.

Your menstrual cycle appears to be relatively regular, with your last two periods occurring from February 14 to February 19 and March 19 to March 25. If we assume a typical cycle length of around 28 days, ovulation would likely occur around the midpoint of your cycle, which would be approximately 14 days after the start of your last period. In this case, ovulation would be expected around April 2 or 3, making April 5 a potentially fertile time, as sperm can survive in the female reproductive tract for up to five days.

You took emergency contraception (Plan B) on April 8, which is within the recommended time frame of 72 hours after unprotected intercourse. Emergency contraception is most effective when taken as soon as possible after the incident, and it can reduce the risk of pregnancy by up to 89% if taken within 72 hours. Since you took it within this window, you have taken a significant step to reduce your risk of pregnancy.

However, it is important to understand that emergency contraception is not 100% effective. Factors such as the timing of ovulation and the individual’s body can influence its effectiveness. Additionally, after taking emergency contraception, some women may experience changes in their menstrual cycle, including earlier or later periods, or changes in flow and symptoms.

Given that you are concerned about the risk of pregnancy, it is advisable to monitor your menstrual cycle closely. If your period is delayed by more than a week from when you expect it, you should take a home pregnancy test for confirmation. These tests are generally reliable and can provide peace of mind.

In conclusion, while there is a risk of pregnancy after unprotected intercourse, the use of emergency contraception significantly reduces that risk, especially when taken promptly. Keep an eye on your menstrual cycle, and if you have any further concerns or experience unusual symptoms, consider consulting a healthcare provider for personalized advice and support. Remember, it’s always better to err on the side of caution when it comes to reproductive health.

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