Evaporation Line vs Faint Positive - Pregnancy Tests Pregnancy, Pre-Pregnancy MOTHER Mother | Pregnancy | Baby | Kids | Motherhood | Parenting

Evaporation Line vs Faint Positive – Pregnancy Tests

Pregnancy Test Facts

Home Pregnancy Test Facts: Faint Positive Lines, Evaporation Lines, and False-Positive Results

What is the difference between evaporation line vs faint positive?

When a person has taken a home pregnancy test and is looking at the results window, she may see a faint (light-colored) line, sometimes called a faint positive line, a dark line, or a line that is barely visible, which is an evaporation line. What do these different lines indicate? Taking the test is simple, but the results may be confusing. This article will help you to discover answers to some of the regular inquiries about the appearance of the lines in the test results.

How Does a Pregnancy Test Work?

A home pregnancy test is a genuinely precise way to detect a pregnancy. A few tests can detect a pregnancy as soon as 1 day after a missed period in some individuals.

When an egg has been fertilized and becomes implanted in the uterine wall, the body starts to produce the hormone human chorionic gonadotropin (hCG). Home pregnancy tests distinguish the level of this hormone in urine.

Following conception, hCG levels are very low. In a healthy pregnancy, the level of the hormone should double every 2 to 3 days. Because the hCG levels are low in the early days of pregnancy, the line in the results window may be faint and indistinct (faint positive line). There is a decent possibility that a pregnancy has occurred even if the line is faint. As the pregnancy progresses, the hCG levels will get higher and the line will get darker and progressively clearer, so it is likely that a pregnancy has occurred if a dark line appears in the window. An evaporation line occurs because the urine used in the test has dried. The line is barely visible. This usually happens when the person has waited too long to read the results of the test. An evaporation line is not an indication that a pregnancy has occurred.

There are two situations that may cause a faint positive line to appear even if the person who took the test is not pregnant. A few medications contain hCG as a functioning ingredient, and someone who is taking one of these medications can have a false-positive pregnancy test result, that is, a faint positive line appears in the results window but the person is not pregnant.

The other situation is when a chemical pregnancy has occurred. This is when the embryo has been lost (miscarried) at a very early stage. After a pregnancy loss, it takes some time for hCG levels to go back to the levels before pregnancy. Therefore, the results of a pregnancy test shortly after the loss may be positive.

Only a doctor can determine whether a faint positive result is because the pregnancy is in its early stage, because the person is taking a medication containing hCG, or because a chemical pregnancy has occurred. If a faint positive line is seen when the woman is not actually pregnant, it is known as a false-positive result, that is, the test is negative.

If a faint positive test result occurs while a woman is bleeding or has a period, it might indicate a chemical pregnancy.

If an individual thinks she might be having a miscarriage or has questions regarding a faint positive pregnancy test, she should contact a doctor for advice.


Evaporation Line vs Faint Positive - Pregnancy Tests Pregnancy, Pre-Pregnancy MOTHER Mother | Pregnancy | Baby | Kids | Motherhood | Parenting
Evaporation Line vs Faint Positive - Pregnancy Tests

What You Should Do if You Get a Faint Positive Test Result

An individual who gets a faint positive home pregnancy test result should wait a couple of days and then take another pregnancy test. If the second test is positive, she should contact her doctor and schedule an appointment.
If the second test is negative and the individual has had a period, it is almost certain that an early miscarriage or chemical pregnancy occurred.

Early miscarriages are common and do not usually impact a person’s ability to become pregnant later on.

When to Call the Doctor

An individual ought to call a doctor with inquiries regarding a faint positive pregnancy test or if the person is worried about a possible miscarriage. A urine or blood test should always be done at the doctor’s office. 

If a person is currently taking a drug that contains hCG as a functioning ingredient, it might be ideal for that person to have a pregnancy test at the doctor’s office rather than take a home pregnancy test.

Once in a while, individuals may have some vaginal bleeding after having a faint positive pregnancy test. If the flow is light or like a period, the individual should call the doctor. If the bleeding is very heavy, for example, requiring more than one pad or tampon in an hour, the individual should go to the emergency room immediately so a doctor can evaluate the situation.

What is the next step and what should be done differently when a test shows an evaporation line rather than a faint positive line?

If you are uncertain whether a faint line on a pregnancy test is a positive result, you should take another home pregnancy test in 2 or 3 days or have a pregnancy test at your doctor’s office. Your doctor can do a urine or blood test and accurately determine if pregnancy has occurred. If you think you had an early miscarriage, you should let your doctor know.

Summary – Evaporation Line vs Faint Positive

A faint positive home pregnancy test result usually implies that an individual is pregnant, but it may also suggest that the result is uncertain. Anybody with a faint positive result should wait a couple of days and take a second home pregnancy test.

If you are uncertain whether a line is a faint positive line or an evaporation line, taking a second test after 1 or 2 days is also a good idea.  It is best to call a doctor with any inquiries or concerns about the results.


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Medical Disclaimer

The information contained in this post is for general information purposes only.
Evaporation Line vs Faint Positive - Pregnancy Tests is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or another qualified health provider with any questions you may have regarding a medical condition.

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