Is it Possible to Have a False-Negative Pregnancy Test Result?

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False-Negative Pregnancy Tests

At Your Options Medical, we have found that when many of our patients have a negative pregnancy test result, they assume they are not pregnant. However, this is not always the case. False negative pregnancy tests do occur. Here is how it works:

A urine pregnancy test detects the hormone called hCG (Human Chorionic Gonadotropin). This is the hormone your body produces during pregnancy. When urine is being tested for the presence of this hCG hormone and a woman is pregnant, the result of the pregnancy test should read positive. However, there are a few reasons a pregnancy test can give a false test result including the following:

  • In early pregnancy, the hCG hormone levels may be too low for a pregnancy test to detect. The earliest time to test for an accurate result is 7-10 days after a missed period.
  • The best time of day to take a pregnancy test is first thing in the morning when a woman’s urine is highly concentrated. Because urine may be less concentrated later in the day, the test may not be able to detect the hCG hormone.
  • If you have had a negative pregnancy test, but are experiencing pregnancy-like symptoms such as nausea, vomiting, tiredness, loss of appetite, etc. it is always best to contact your doctor to access for causes unrelated to pregnancy.
  • There is always the possibility of human error when performing home pregnancy tests. It is important to follow the manufacturer’s instructions. Most pregnancy tests require you to let the test set for 3-5 minutes. If the test is left beyond the recommended set time, this could produce a false test result.
  • If you had a tubal ligation (i.e. tubes tied), are experiencing pregnancy-like symptoms, and test negative on a pregnancy test, contact your medical doctor to assess for causes unrelated to pregnancy.

If you think you might be pregnant because you have missed your period, know that there are other reasons besides pregnancy. To learn more, check out our blog.

Contact Us

If you think you might be pregnant, Your Options Medical can offer you pregnancy testing, ultrasound, and pregnancy options counseling at no cost to you and insurance is not required.


Contact us today to learn more!

519 responses to “Is it Possible to Have a False-Negative Pregnancy Test Result?

  1. Hello
    I had my period from Sep 13-19, the spotting on September 28-29 I had positive tests at home- October 9 I went to see a doctor on October 13 to get a blood test and it came back negative. I still don’t have my period. Can I still be pregnant?

    1. Hello Katherine,
      Thank you for reaching out to Your Options Medical with your question.
      With the dates you provide, as of October 13, you had not missed a period yet. It could have been too early to detect pregnancy.
      I would take a home pregnancy test. If it is negative, you can repeat in a week. If it is still negative, you can ask for a repeat blood pregnancy test. If this is still negative, and you haven’t started your period, you can follow up with your doctor.
      At Your Options Medical, we provide free pregnancy testing, ultrasound, and pregnancy options counseling. To schedule your confidential appointment, please call or text 508-251-9022.
      Thank you, again for reaching out and please do not hesitate to contact us in the future if we can be of any further help.
      Best Regards,
      Barbara, RN

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