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What Does A Faint Positive Pregnancy Test Mean?

Medically reviewed by Jezreel Esguerra, MD · General Practitioner


Written by Hello Doctor Medical Panel · Updated Jan 13, 2023

    What Does A Faint Positive Pregnancy Test Mean?

    Does a faint positive pregnancy test mean you’re pregnant? If you take a pregnancy test early, your HCG levels may still be low and you’ll see a faint positive line. But any positive line, no matter how faint, indicates that you are pregnant.

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    What Does A Faint Positive Pregnancy Test Mean?

    HCG levels in your body will rise throughout the course of your pregnancy. If you have very early pregnancy symptoms, such as implantation bleeding, you may even take a pregnancy test at home before your first missed period.

    Though certain home pregnancy tests are more sensitive than others and can accurately detect a pregnancy many days before a missed period, your excitement may turn to bewilderment as you get a faint positive line.

    On the other hand, a thin positive line in the results box can be confusing. With some home pregnancy tests, a single line denotes a negative result, meaning you are not pregnant, while a double line denotes otherwise.

    A faint positive line is common, and there are a number of possible causes for it, such as

    • Low levels of the pregnancy hormone human chorionic gonadotropin (hCG)
    • How much vitamin C and D you need each day
    • Certain medications, especially fertility pills, which can frequently raise hCG levels temporarily.

    Some women see a clearly distinguishable positive line after taking a home test. But in other cases, the positive line appears faded. In urine tests, high amounts of biotin may prevent the control line on your home pregnancy test from appearing, resulting in inaccurate results. This implies that you may be pregnant, experiencing an ectopic pregnancy, or having a miscarriage without knowing it.

    The HCG Factor

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    What’s the role of HCG in a faint positive pregnancy test? There is a good chance that you are pregnant if your home pregnancy test results show a faint positive line. A weak positive can be produced by low levels of the pregnancy hormone human chorionic gonadotropin (HCG). While some women perceive a distinct positive line after performing a home test, in some circumstances, the positive line appears faded. 

    It’s important to note that the more HCG in your system, the easier it is to see and read a positive line on a pregnancy test. Your body begins producing HCG as soon as you become pregnant. And the hormone level increases as your pregnancy progresses. Home pregnancy tests are designed to detect this hormone. And if it is present in your urine, you will have a positive test result.

    Although HCG is present in urine, some women utilize home pregnancy tests early in their pregnancies. Usually, they do so before their period, or shortly after their last sexual contact. Although these women may be pregnant, the pregnancy test may come back negative. This is because the HCG level is still low in their urine.

    Faint Positive Pregnancy Test: Evaporation Line

    Occasionally, what appears to be a positive line on a home pregnancy test is actually an evaporation line. These deceiving lines can appear in the results window. Evaporation lines frequently happen when a person has checked the result too late or taken the test incorrectly. It is best to take another test when an evaporation line appears for an accurate result.

    Because the latter only appears in the test window few minutes after it is advised to verify the test results, it might be difficult to tell the difference between a weak line that looks to be a positive result and one that is an evaporation line.

    The instructions on the packaging will also inform you how long you have to wait before checking the results. It depends on the brand. But in most brands, you will have to read it within the first three to five minutes. If you use a home pregnancy test, it’s important to read and carefully follow the instructions.

    In contrast, if you miss the window for viewing the results and check the test 10 minutes later, what you may see is a faint line which is an evaporation line. If you check your results inside the specified time frame and notice a faint positive line, you are most likely pregnant.

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    What to Do After Having a Faint Positive Line

    If there is any doubt about whether a faint line is a positive line or an evaporation line, retake the test. And wait two to three days before taking another one. This gives your body more time to produce more pregnancy hormones if you are expecting. This could result in a clearer, undeniable positive line.

    In order to avoid mistaking an evaporation line for a positive line, check the results as soon as you can after performing the at-home pregnancy test. The less diluted your pee is, the better. An evaporation line does not indicate pregnancy. Instead, it usually means that the test was performed incorrectly or that the result was checked too late. 

    For any concerns with regards to a faint positive pregnancy test, consult your doctor

    Learn more about Getting Pregnant here

    Disclaimer

    Hello Health Group does not provide medical advice, diagnosis or treatment.

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    Medically reviewed by

    Jezreel Esguerra, MD

    General Practitioner


    Written by Hello Doctor Medical Panel · Updated Jan 13, 2023

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