can you have a negative pregnancy test after a positive one?
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One explanation for a false negative pregnancy test is what's called the hook effect. It's not common but sometimes this effect leads to urine and blood tests giving the wrong result. This error might happen even after you've had one positive pregnancy test and test again a couple days later.
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Yes, it is possible. Getting a negative result doesn't mean you're not pregnant, it may just mean your hCG levels are not high enough for the test to detect the hormone in your urine.
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Pregnancy tests vary in their sensitivity (how soon they can detect HCG and what level of HCG needs to be present). You can find information on the packaging about how sensitive your test is. If you still think you're pregnant after a negative result, wait a few days and try again.
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A negative result can mean that you are not pregnant, you took the test too early, or you took the test wrong. Pregnancy tests vary in their sensitivity (how soon they can detect the hormone hCG), and you may not have given your body enough time to produce enough hCG hormones that will show up on the test.
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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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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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However, home pregnancy tests differ in the ability to diagnose pregnancy in women who have recently missed a period. If you have a negative test but think you might be pregnant, repeat the test one week after your missed period or talk to your health care provider.
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It is more than 99% 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 too early, there could be insufficient amount of hCG in the urine for the test to detect.
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You can get a negative result on your pregnancy test for two reasons: You are not pregnant or you are pregnant, but you tested too early for the pregnancy test you used to pick up the hCG 'pregnancy' hormone in your body.
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If you get a negative test result and you think you are still pregnant – take another test on the day you expect your period. If your period is overdue, test again three days later. If you are still unsure, see your doctor.
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Is it possible to be pregnant and get a negative pregnancy test result? Yes, it is possible. Getting a negative result doesn't mean you're not pregnant, it may just mean your hCG levels are not high enough for the test to detect the hormone in your urine.
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A pregnancy test works by detecting the hCG hormone, which is usually only present in your body if you're pregnant. Your hCG levels will increase over time if you are pregnant. A negative pregnancy test result means the test hasn't detected hCG in your urine.
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Why did I get a negative test result? You can get a negative result on your pregnancy test for two reasons: You are not pregnant or you are pregnant, but you tested too early for the pregnancy test you used to pick up the hCG 'pregnancy' hormone in your body.
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If you take a pregnancy test after your period is late and get a negative result, you're unlikely to be pregnant. Home pregnancy tests are very accurate — about 99 percent — but a false negative is still possible. Try taking another pregnancy test in a day or two to double check.
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If you're testing before the day of your expected period, you may see a negative result – even if you're pregnant – if: Your test wasn't sensitive enough for early testing. You didn't use the first urine of the day, so concentration of hCG in your urine wasn't high enough.
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Some women get a negative test, and then later test positive for pregnancy. If this happens, believe the positive test. ... If the test is negative, or you continue to get a mix of positive and negative pregnancy tests, it could mean you are having a miscarriage or that your HCG levels are very low. Call your doctor.
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Negative test results Pregnancy tests vary in their sensitivity (how soon they can detect HCG and what level of HCG needs to be present). You can find information on the packaging about how sensitive your test is. If you still think you're pregnant after a negative result, wait a few days and try again.