Can I Rule Out Pregnancy After Safe Intercourse?

Can pregnancy be ruled out?

Hello doctor, my last menstrual period ended on October 18.
I had intercourse with my boyfriend on October 24.
We used a condom after taking off our pants, and he did not ejaculate.
We also checked the condom afterward, and it was not damaged.
My boyfriend went to the bathroom afterward and ejaculated manually.
As of November 27, my period still hasn't arrived, so I bought a pregnancy test, which showed one line.
Is this result reliable? Can I rule out pregnancy?

Ms. J, 20~29 year old female. Ask Date: 2015/11/29

Dr. Lü Lizheng reply Obstetrics and Gynecology

If the pregnancy test is taken more than 18 days after sexual intercourse, the result can be considered reliable, and pregnancy can be ruled out.
Sincerely, Dr.
Li-Cheng Lu, Taoyuan Hospital.

Reply Date: 2015/11/29

More Info

When assessing the risk of pregnancy after engaging in sexual intercourse, especially when using protection, it's important to consider several factors. In your case, you mentioned that your last menstrual period ended on October 18, and you had intercourse on October 24 while using a condom that was checked for any damage. Additionally, your boyfriend did not ejaculate inside you, which further reduces the risk of pregnancy.

Based on the information provided, it seems that you have taken the necessary precautions to minimize the risk of pregnancy. The use of condoms is one of the most effective methods of contraception when used correctly, with a typical use effectiveness rate of about 85% to 98%. Since you confirmed that the condom did not break and that there was no ejaculation inside, the likelihood of pregnancy is significantly reduced.

You also mentioned that you took a pregnancy test on November 27, which showed one line. In most home pregnancy tests, one line indicates a negative result, meaning that you are likely not pregnant. However, it is essential to consider the timing of the test. Pregnancy tests are most accurate when taken after a missed period. Since your period was due around late October, testing on November 27 should provide a reliable result, assuming your cycles are regular.

If your menstrual cycle is typically regular and you have not experienced any other symptoms of pregnancy (such as nausea, breast tenderness, or unusual fatigue), it is reasonable to conclude that the risk of pregnancy is low. However, if your period does not arrive soon or if you have any concerns, it is advisable to consult a healthcare professional for further evaluation. They may recommend a blood test for pregnancy, which is more sensitive than home urine tests and can detect pregnancy earlier.

In summary, based on the precautions you took and the negative pregnancy test result, it is likely that you can rule out pregnancy. However, if you continue to have concerns or if your period does not come, seeking medical advice would be a prudent step. Regular communication with your partner about contraception and sexual health is also vital in preventing unintended pregnancies and ensuring both partners feel secure and informed.

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