how do you get a false negative pregnancy test?
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['Take the test too early. The earlier after a missed period that you take a home pregnancy test, the harder it is for the test to detect HCG. ... ', 'Check test results too soon. Give the test time to work. ... ', 'Use diluted urine.']
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They're not foolproof, however. It is possible to get a positive result when you're not actually pregnant, which is called a false-positive. If you've been looking forward to a positive pregnancy test result, a false-positive is disappointing. The good news is they're rare.
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A positive pregnancy test result will mean you are almost certainly pregnant. Getting a true false positive – when you were never pregnant in the first place – is incredibly rare. ... If you are testing before the date of your expected period, you may be pregnant but your hCG levels are too low for the test to detect.
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Getting a false-negative pregnancy test because of the hook effect is rare. False-negative test results can happen for many reasons. One older study that tested 27 different kinds of at-home pregnancy tests found that they gave false negatives almost 48 percent of the time. That's huge!
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These tests are almost 99 percent accurate . In most cases, a negative result means that you aren't pregnant.
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Sometimes a test can also return a false positive result, detecting pregnancy where none exists, but false negative results are much more common, with as many as 9 out of 15 women testing negative until seven or eight weeks.
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As what happened with New_here above, a pregnancy may initially be detected by an early pregnancy test, which will give you a positive result. But then, when you test again at a later time, you get a negative result.
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False positive pregnancy tests are very rare. Most women will never have one. In fact, false positives are so rare that if a woman does have a positive test and later has a negative test, she should assume she had a very early miscarriage. If you test positive, try testing again a day later.
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A false-positive result indicates a pregnancy even though there isn't one. Rarely, the test may detect abnormal, non-pregnancy tissue, which requires follow-up by a doctor. These results are rare because usually only pregnant women produce the hCG hormone. There's a higher risk of getting a false-negative result.
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A third reason for a false negative result on a pregnancy test is diluted urine. If you drink a lot of water, it will dilute the hCG in your urine, and could cause you to get a false negative.
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A pregnancy test kit is rarely wrong. It is more than 99 per cent accurate. Thus, if your test is negative, it means that you are not pregnant; However, if you are very early in your pregnancy and the test is done far too early, there could be an insufficient amount of urine hCG for the test to detect.
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Symptoms With a Negative Test Feeling pregnant doesn't mean you are, but a negative pregnancy test can be wrong. A pregnancy test may be negative if: You tested too early. There isn't enough pregnancy hormone hCG in your urine yet.
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Sometimes you can get a false negative on your pregnancy test – meaning you're pregnant, but the test says otherwise. On the flipside, you can miss your period, but you're not pregnant. Read on to find out what a negative pregnancy test result means.
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['Taking the Pregnancy Test Too Soon.', 'Not Waiting Long Enough to Read the Test.', 'Waiting Too Long to Read the Test.', 'Not Believing Positive Test Results.', 'Not Following up on a Negative Test.', 'A Word From Verywell.']
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The top three reasons you may get a false positive are: You've recently been pregnant. You've been taking fertility medications that contain hCG. You have a very rare medical condition, like ovarian cysts, that produce hCG and turn your result positive.
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If you take a test too early, you may get a false negative (when the test says you are not pregnant but you are). Your body needs time for the hormone to rise to a high enough level to be detected in a test. If the test comes back negative but you still think you could be pregnant, wait a few days and test again.
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However, negative results are less reliable. For example, if you do a pregnancy test too early, you could be pregnant, but there may not be enough HCG in your body to give a positive test result. Pregnancy tests vary in their sensitivity (how soon they can detect HCG and what level of HCG needs to be present).