Condom Effectiveness: Pregnancy Risk Assessment - Obstetrics and Gynecology

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Contraceptive effectiveness of condoms?


Hello, I would like to ask about the correct use of condoms.
If the condom was used properly and there were no leaks after filling it with water, and if the male partner withdrew before ejaculation, then immediately filled the condom with water without touching any semen and then touching the partner, what is the likelihood of pregnancy? 🤔

Huang, 20~29 year old female. Ask Date: 2021/09/03

Dr. Huang Yiwen reply Obstetrics and Gynecology


Hello Mr.
Huang: According to your approach, and with the consistent use of certified condoms, the theoretical probability of pregnancy is quite low.
The rest can only be left to fate.

Reply Date: 2021/09/03

More Info


When it comes to understanding the effectiveness of condoms and assessing the risk of pregnancy, it's essential to consider several factors, including proper usage, the integrity of the condom, and the timing of ejaculation. Based on your description, it sounds like you have taken appropriate precautions to minimize the risk of pregnancy.

Condoms, when used correctly, are one of the most effective forms of contraception available. They have a typical use effectiveness rate of about 85%, meaning that 15 out of 100 women may become pregnant within a year of using condoms as their only form of birth control. However, with perfect use, the effectiveness can increase to over 98%.
In your case, you mentioned that you used the condom correctly, ensured that it did not leak by performing a water test, and withdrew before ejaculation. These actions significantly reduce the likelihood of sperm entering the vagina. The fact that you did not touch the condom with your hands after ejaculation further minimizes the risk of transferring sperm to your partner.

It's also important to note that the risk of pregnancy is highest during the ovulation period of a woman's menstrual cycle. If you are tracking your cycle and know when you ovulate, this can help you assess your risk more accurately. If intercourse occurred outside of the ovulation window, the chances of pregnancy are lower.

Additionally, while condoms are effective at preventing pregnancy, they also provide protection against sexually transmitted infections (STIs), which is another important consideration in sexual health.

If you are still concerned about the possibility of pregnancy, you may consider taking a home pregnancy test if your period is late or if you experience any unusual symptoms. Most home pregnancy tests are accurate when taken after a missed period.

In summary, based on your description of proper condom use and precautions taken, the risk of pregnancy appears to be low. However, if you have any lingering concerns or if your situation changes, consulting with a healthcare provider can provide you with personalized advice and reassurance. They can also discuss additional contraceptive options if you are looking for more reliable methods to prevent pregnancy in the future.

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