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How Pregnancy Tests Work485,596 Views
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Description: Many women perform simple pregnancy tests to determine if they are pregnant or not. See how pregnancy tests work by watching this informative video.
pregnancy test, pregnancy tests, hcg, missed period, early pregnancy test, home pregnancy test
last period, last menstrual period, signs of pregnancy, morning sickness, false pregnancy test, positive pregnancy test, false positive, false negative
obgyn, pregnancy, pregnant, womb, implantation, ovary, fertilization, sperm, egg, embryo
first response, answer, clearblue, ept, pregsure
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Whether you’re desperate to make a baby or are petrified that you are pregnant, your first step will most likely involve taking a home pregnancy test. To get the most accurate result on a home pregnancy test, it helps to know how the test works, and when you should take it. Quite simply, a home pregnancy test detects the presence of a hormone in your urine called human chorionic gonadotropin, or HCG. HCG is a pregnancy hormone that a woman’s body starts producing when a fertilized egg implants in her uterus. In most women, this implantation and subsequent hCG production, occurs up to six days after sperm and egg meet. Because of this, many women will get the MOST accurate result if they take the home pregnancy test a full week AFTER their missed period. Although many tests claim that they are “99 percent accurate” as soon as the FIRST day your period is due or earlier. That’s because some technically pregnant women may not have experienced implantation by this day in their cycle. Plus, the amount of HCG that a woman makes may be so minute at first, that a home pregnancy test won’t be sensitive enough to detect it. When you do take your home pregnancy test, you’ll get the best results if you test first thing in the morning, when your urine is the most concentrated. Since tests work in various ways, make sure to read the instructions and pick the one you think will work best for you. Whatever the test results say, you should still take another pregnancy test in a few days to confirm. This is partly because of the extremely unlikely chance that your test will say you’re pregnant when you’re actually not. This false-positive result can occur if you had a miscarriage or abortion in the past eight weeks, or if you’re taking certain fertility drugs. More common are false-negative results, where the test SAYS you’re baby-free when you’re actually pregnant. False-negatives are often the result of taking a pregnancy test too early, or not following the test directions. Additionally, you could get a false-negative if you drink a great deal of water pre-test, in turn diluting the amount of HCG in your urine. If you DO get a positive result, make an appointment with your doctor to confirm the pregnancy. Your physician will probably take a blood test to measure HCG in more minute amounts than the home pregnancy tests are able to. Your doctor may also confirm your pregnancy with a sonogram. If you are indeed pregnant, prenatal care should begin right away!