can you be pregnant after a negative blood test?
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False negative results (test is negative, but you are actually pregnant) usually occur if the blood pregnancy test was performed too early (a rule of thumb is that it takes at least 7 days after conception for the test to show a positive result).
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However, if done incorrectly or taken too early, the result can be inaccurate. If you get a negative result and still have symptoms of pregnancy (missed period, nausea, breast tenderness, and fatigue), wait a week and take another test or contact your doctor so you can have a blood test done.
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False-negative results If an hCG test comes back negative, that generally means you're not pregnant. However, if the test was performed too early in the pregnancy, before your body has had time to produce enough hCG, you can get a false negative.
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If you take a pregnancy test at night and get a positive result, then you are most likely pregnant. However, if the result is negative, it's possible you might not be pregnant. But you may have also just not had high enough levels of hCG in your urine to be detectable.
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False Negative Pregnancy Tests In fact, it is possible to have a negative result on a pregnancy test and actually be pregnant. Here is how it works: The goal of a urine pregnancy test is to test the urine for a hormone called hCG (Human Chorionic Gonadotropin). This is the hormone your body produces during pregnancy.
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Follow the Pregnancy Test's Instructions Most pregnancy tests include instructions that encourage you to wait at least one week between a negative test and taking another pregnancy test. ... Though you may continue to get a negative result until your body builds up enough hCG to turn the test positive if you are pregnant.
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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 repeated negative pregnancy test even with a missed period typically means that you are not pregnant. A negative pregnancy test a week or more after your missed period indicates that your chance of being pregnant is less than 1-2%. A positive pregnancy test usually means that you are pregnant.
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Urine HCG tests often return false-negative results, particularly very early in pregnancy. This can be stressful and demoralizing to people struggling to become pregnant. Blood tests are typically more accurate, though even these may fail to pick up low levels of HCG in early pregnancy.
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Most kits advise you to perform the test several days after your first missed period, although it may be positive earlier. The result may be negative if you take the test too early and there is too little HCG in your urine.
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"If you do a pregnancy test before you miss your period, the result may be negative with a urine test but positive with a blood test." Early pregnancy tests aren't usually necessary, but they can make a difference for women at higher risk for miscarriage or ectopic pregnancy.
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A blood pregnancy test can confirm a pregnancy as early as 10 days after a missed period (around 6-8 days after you have ovulated)—and sometimes, these tests can detect hCG even earlier. You must go to your doctor's office to get a blood pregnancy test.
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While hCG levels tend to fall quickly after an abortion, they can take several days or weeks to return to baseline. Usually, a home pregnancy test shows an accurate negative result 3 weeks after the end of a pregnancy. If a pregnancy test shows a positive result after 3 weeks, it may indicate a new pregnancy.
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However, while these early detection tests work for most people, every woman is different, and the quantity of the pregnancy hormone hCG doubles every 2 to 3 days. So, the short answer is yes, it's absolutely possible to record a negative result after missing your period, even if you are pregnant!
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If you think you may be pregnant after a missed period but got a negative result on your pregnancy test, wait a few days. Then retest. If you continue to miss your period, be sure to talk to your doctor to rule out any complications.
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“In a chemical pregnancy,” says Dr Kaye, “the test is initially positive but then your period may start and a further pregnancy test is negative.” This is because, even with a chemical pregnancy, the hormone hCG (human chorionic gonadotrophin) is present. It will drop after you get your period, though.
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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.