Delayed Menstruation: When to Take a Pregnancy Test

Menstrual delay

So should I wait a week to take a pregnancy test before returning for a follow-up appointment? I had sexual intercourse on October 11, but there was no ejaculation; is it still possible to become pregnant? Thank you!

Qiuqiu, 20~29 year old female. Ask Date: 2015/10/23

Dr. Lü Lizheng reply Obstetrics and Gynecology

1.
Although there is no ejaculation, it is still possible for a small number of sperm to leak out, which could result in pregnancy.
2.
It is recommended to take a pregnancy test about 15 to 18 days after sexual intercourse for more accurate results.
Testing too early may yield a negative result because the embryo may be too small to produce sufficient levels of human chorionic gonadotropin (hCG).
Sincerely, Dr.
Li-Cheng Lu, Taoyuan Hospital.

Reply Date: 2015/10/23

More Info

Delayed menstruation can be a source of concern for many women, especially when there is a possibility of pregnancy. In your case, you mentioned having sexual intercourse on October 11 without ejaculation, which raises the question of whether pregnancy could still occur. While the chances of pregnancy are significantly lower without ejaculation, it is still possible due to pre-ejaculatory fluid, which can contain sperm.
Given that your menstrual cycle is typically regular, a delay in your period could be attributed to several factors, including hormonal imbalances, stress, changes in weight, or underlying health conditions. It is important to note that even with a regular cycle, variations can occur, and a missed period does not automatically indicate pregnancy.

Regarding when to take a pregnancy test, it is generally recommended to wait at least one week after a missed period for the most accurate results. This is because pregnancy tests work by detecting the hormone human chorionic gonadotropin (hCG), which is produced after a fertilized egg implants in the uterus. If you take a test too early, there may not be enough hCG in your system to yield a positive result, even if you are pregnant.

In your situation, since you have not yet missed your period, it would be advisable to wait until you are at least a week late before taking a home pregnancy test. If your period does not arrive by then, you can take the test. If the result is negative and your period still does not come, consider retesting a few days later or consulting with a healthcare provider for further evaluation.

If you experience any unusual symptoms, such as severe abdominal pain, heavy bleeding, or other concerning signs, it is important to seek medical attention promptly. These could indicate conditions that require immediate care, such as an ectopic pregnancy or other gynecological issues.

In summary, while it is possible to become pregnant without ejaculation, the likelihood is lower. Waiting a week after your expected period to take a pregnancy test will provide a more accurate result. If your period continues to be delayed, or if you have any concerns, do not hesitate to reach out to your healthcare provider for further guidance and support.

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