Top 20 Reasons For A Negative Pregnancy Test

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A home pregnancy test is the first thing a woman does after missing her periods. There are many things one needs to know about pregnancy test before taking it as true. A negative pregnancy test comes like a heartbreak for any woman who wants to be a mom. But in many cases, it is a false negative pregnancy test. A false negative pregnancy test is more common than a false positive pregnancy test.

What is a negative pregnancy test?

A negative pregnancy test is the pregnancy test result which shows that you are not pregnant.

What is a false negative pregnancy test (PT)?

A false negative pregnancy test is when you are pregnant yet you get a negative PT result.

How does a pregnancy test work?

Reasons for a negative pregnancy result can be only answered when you know how a pregnancy test works.

  • A pregnancy test has antibodies for hCG hormone particles.
  • The hCG hormone comes in the urine of a woman after she is pregnant.
  • The antibodies are detector particles and they can detect hCG in your urine.
  • If hCG is present a color is seen and if hCG is not present then one gets a negative pregnancy test.

How to read a negative PT?

  • A pregnancy test has antibodies for hCG hormone particles.
  • The hCG hormone comes in the urine of a woman after she is pregnant.
  • The antibodies are detector particles and they can detect hCG in your urine.
  • If hCG is present a color is seen and if hCG is not present then one gets a negative pregnancy test.
Top 20 reasons for A Negative Pregnancy Test
Top 20 reasons for A Negative Pregnancy Test

Top 20 Reasons For A Negative Pregnancy Test

The top 20 reasons for getting a negative pregnancy test are:

  1. Low levels of hCG causes negative pregnancy test: If your body is producing low levels of hCG even after implantation then you will get a negative pregnancy test. There is nothing to worry about unless you have other symptoms like breakout bleeding or cramps. All of us are different and so our bodies. Some women keep ovulating and getting their periods even after three months during their pregnancy.
  1. Using Diluted urine gives negative pregnancy test: If you use a dilute urine sample then your hCG levels will get diluted. Hence, you will get a negative pregnancy test result. This is because if you use your afternoon or evening urine sample the hCG will not be enough in it and hence you will get a negative pregnancy test. This will be a false negative pregnancy test if you are expecting.
  1. Defective pregnancy test is reason for negative pregnancy test: If the pregnancy test is defective or damaged,  it will give a negative pregnancy test. Absence of the control line shows that pregnancy test is not working. Generally, a defective pregnancy test doesn’t give a control line.
  1. Not following the instructions on pregnancy test gives negative pregnancy test: A pregnancy test needs your attention and a minimalistic skill for testing your pregnancy. Every pregnancy test is different and so are its instructions for testing pregnancy. The time for reading tests, dipping the hCG strip etc. differ slightly. Hence, it is probable that if you miss out any steps during taking the pregnancy test you can get a negative pregnancy test.
  1. Chemical pregnancy causes negative pregnancy test: A tubal pregnancy or chemical pregnancy is the condition when your pregnancy is not sustainable. This happens when the embryo doesn’t get implanted inside your womb and instead moves to other places. Implantation of the embryo in the womb is essential for its survival. So you might be chemically pregnant but hCG won’t be enough. This will give you a negative pregnancy test.
  1. Use of certain medications and drugs is a reason for negative pregnancy test:

    Medications such as anti-epileptic drugs, diuretics, promethazine etc. interfere with pregnancy test. They give you a false pregnancy test. These drugs block the normal reactions of the pregnancy test and hence can give both false negative or positive pregnancy test.

  1. Misinterpretation of evaporation lines shows negative pregnancy test: If you confuse a faint positive pregnancy test as evaporation line then you will assume that it is a negative pregnancy test. However, evaporation lines appear only as a result of errors and are not normal.
  1. Using an expired pregnancy test gives negative pregnancy test: An expired pregnancy test has crossed its lifespan and the antibodies have expired. Once the antibodies are not functional then they won’t be able to detect hCG. This will give a negative pregnancy test.
  1. Reading the results after the time gives negative pregnancy test: One has to read a pregnancy test within a given time slot. Once the result reading time has crossed then the results of pregnancy test are no longer reliable. Sometimes after the reading time is over the pregnancy test results might disappear. This will give you a false negative pregnancy test.
  1. Hormone misbalance shows negative pregnancy test: Hormones influence level of one another. There is a complex feedback mechanism involved. If a woman has a high level of other reproductive hormones or prolactin then she will get a negative PT. After all, a pregnancy test works relying totally on the presence of hCG hormone in your urine. A hormone unbalance will not allow a proper functioning of the pregnancy test and give a negative pregnancy test.
  1. Taking the test too early gives negative pregnancy test: Taking the pregnancy test at the right time is the first thing for getting an accurate PT result. If a woman takes her pregnancy test too early after having sex then she can get a negative pregnancy test. This can head to become a false negative pregnancy test is she had actually conceived or a true negative pregnancy test if she did not.
  1. Not applying enough sample of urine: If you don’t apply a sufficient amount of urine then again there won’t be enough hCG and it will not rise in the kit till the hCG antibodies. If this happens then you will get a negative pregnancy test for sure.
  1. Improper orientation of pregnancy test kit gives negative PT: It is very important that you place the pregnancy test in the right orientation. Pregnancy tests need different orientations like placing it horizontal or vertical. If you don’t place the pregnancy test correctly then the urine will not rise resulting in a negative PT result.
  1. Improper storage of pregnancy test kit gives negative pregnancy test: Never refrigerate a pregnancy test. If you place it in a refrigerator the functioning might get hampered. The moisture in a refrigerator will affect the pregnancy test. So an improperly stored pregnancy test can give you a negative pregnancy test.
  1. Contaminating the hCG strip by touching causes negative pregnancy test:

    An hCG strip has extremely sensitive antibodies. These detect the hormone in your urine. If hand touches the strip you may get a false pregnancy test. This can be a negative pregnancy test. If the strip gets contaminated and breaks the capillary action, urine won’t rise normally.

  1. Not being pregnant obviously is reason for negative pregnancy test: The most obvious reason for getting a negative pregnancy test is that you are not pregnant. You might be mistaking the symptoms of some other medical condition as pregnancy. It is important that you are able to differentiate between PMS and early pregnancy symptoms for making the right conclusions.
  1. Infertility is a cause of negative pregnancy test: An infertile woman cannot conceive normally without any artificial assistance. So if you are infertile then you will get a negative pregnancy test. If you are between 25 – 30 years and are not able to conceive normally even after trying for a year then you need to consult an infertility expert.
  1. Taking caffeine or other fluids that interfere with pregnancy test and give negative pregnancy test: Caffeine and some illegal drugs might affect your urine contents. The liver detoxifies these substances and then the waste and toxins which pass off for excretion. If these come along with your urine then you may get a negative pregnancy test.
  1. Using a less sensitive pregnancy test gives a negative pregnancy test: A pregnancy test is sensitive to a particular minimum concentration of hCG. The lower the level of hCG hormone detectable by a pregnancy test the higher sensitivity it has. If you use a less sensitive pregnancy test then you will get a negative pregnancy test.
  1. Continuing use of birth control affect seeing symptoms of early pregnancy will show negative pregnancy test: A birth control doesn’t affect your pregnancy test but it does affect your hormonal balance. So while birth control might not interfere with your PT result but it will influence pregnancy.