Pregnancy Risks: Unprotected Intercourse and Timing

What is the likelihood of getting pregnant?

Your girlfriend's menstrual cycle is usually 28 days, and last month it was 29 days.
Her last period started on October 18th.
You had unprotected intercourse three times on the afternoon of October 27th, but there was no ejaculation during any of the encounters.
Each time lasted about one minute before withdrawal.
What is the likelihood of pregnancy in this situation? Is there a need for medication?

Niu Nai, 20~29 year old female. Ask Date: 2018/10/30

Dr. Huang Yuande reply Obstetrics and Gynecology

Hello, the likelihood is generally low, but there is still a possibility of sperm leakage during unprotected intercourse, so it cannot be ruled out completely.
It is advisable to take preventive measures in advance to avoid any unintended occurrences if there are no plans for pregnancy.
Thank you for your question.

Reply Date: 2018/10/30

More Info

When it comes to understanding the risks of pregnancy, especially in the context of unprotected intercourse, it’s essential to consider several factors, including the timing of the menstrual cycle, the nature of the sexual activity, and the potential for sperm to cause pregnancy even without ejaculation.

In your case, your girlfriend's menstrual cycle is typically around 28 days, with her last period starting on October 18. Given this cycle, ovulation likely occurred around day 14, which would be approximately October 31. Engaging in unprotected intercourse on October 27, just a few days before ovulation, does pose a risk for pregnancy. Sperm can survive in the female reproductive tract for up to five days, so if any sperm were present during your sexual activity, there is a possibility that they could fertilize an egg once ovulation occurs.

Even though you mentioned that there was no ejaculation during intercourse, it’s important to note that pre-ejaculate fluid (pre-cum) can contain sperm. This fluid is released before ejaculation and can potentially lead to pregnancy, albeit the chances are lower than with full ejaculation. Therefore, while the risk may be reduced, it is not entirely absent.

Regarding whether medication is needed, if your girlfriend is concerned about the possibility of pregnancy, she may consider taking emergency contraception (EC) if it is within the appropriate time frame. 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 later. It’s important to consult with a healthcare provider or pharmacist to discuss the best options available.

In terms of resources, I recommend looking into reputable websites such as Planned Parenthood or the American College of Obstetricians and Gynecologists (ACOG), which provide comprehensive information on reproductive health, contraception options, and pregnancy risks. Additionally, if your girlfriend misses her next period or experiences any unusual symptoms, it would be wise for her to take a home pregnancy test or consult with a healthcare provider for further evaluation.

In summary, while the risk of pregnancy from the described sexual activity is not negligible, it is lower than if ejaculation had occurred. If there are concerns about potential pregnancy, considering emergency contraception and seeking guidance from a healthcare professional would be prudent steps to take.

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