is it possible to have false positive pregnancy test?
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In very rare cases, you can have a false-positive result. This means you're not pregnant but the test says you are. You could have a false-positive result if you have blood or protein in your pee. Certain drugs, such as tranquilizers, anticonvulsants, hypnotics, and fertility drugs, could cause false-positive results.
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Can a faint line ever mean I'm not pregnant? It's very unlikely but is possible. 'False positives' generally only happen if you've done the test wrong, have used a test that's past its expiry date, are 'reading' the result long after the wait time outlined on the packet or are taking certain medications.
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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.
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OPKs have a high false positive as well as a high false negative rate for being pregnant. If an OPK is positive, you could still NOT be pregnant, and if it's negative you could still BE pregnant.
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Could a positive result be wrong? Although rare, it's possible to get a positive result from a home pregnancy test when you're not actually pregnant. This is known as a false-positive.
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Cue: panicked visit to your ob/gyn, only to learn that you're actually not pregnant and had nothing to stress about. Thankfully, false-positive pregnancy tests are rare, but they can happen. Here are some of the most common causes of a false-positive pregnancy test.
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A false negative on a home pregnancy test is possible, but extremely unlikely. As long as your urine got on the test's absorbent strip, it should be accurate. You can always take another test if you're worried you might have missed. Something that can give you a false negative is taking the test too early.
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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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It's possible to get a negative result from a home pregnancy test when you're actually pregnant. This is known as a false-negative.
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If an OPK is positive, you could still NOT be pregnant, and if it's negative you could still BE pregnant. Coincidentally, you could have a positive OPK, an elevated LH when you are pregnant, but a positive OPK will not confirm the pregnancy. You could have a false positive OPK but not a false positive pregnancy test.
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Chemical pregnancy The most common explanation for a "false positive" is that you really were pregnant when you took the test. "Some women can get a positive pregnancy test and then three days after their period is due, they have a really heavy period," says Lanalee Araba Sam, M.D., an ob-gyn in Fort Lauderdale.
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Accuracy. As with urine/home pregnancy tests, it is possible to end up with false results (both negative and positive) from a blood pregnancy test.
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False positive results are incredibly rare, and only happen if you have recently been pregnant, you're on fertility medications containing hCG, or you have a rare medical condition that causes hCG to be present.
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So, can pregnancy cause a false positive HIV test? Not exactly, but false positives do happen. Experts say pregnant people can experience false positives simply because they're tested more often (once in the first trimester and once in the third) than the general population.
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False negative pregnancy test – how common is it? Yes, wrong pregnancy test results can and do happen. In fact false negatives – where the pregnancy test says you're not pregnant but you actually are – are more common than false positives. However, it's also important to say that this shouldn't give you false hope.
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A false positive can be the result of the fact that in many fertility treatments, hCG is given to “trigger” ovulation and may remain in the blood. A false negative might occur because a low level of hCG may be undetectable in a urine test despite a pregnancy starting.
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Testing too early is unreliable as it can lead to a false result. If it's negative, it doesn't mean that you aren't pregnant—it could just be too early to tell. You can avoid that disappointment if you wait a little longer. If you are undergoing fertility treatments, testing too early can result in a false positive.