how long does the hcg stay in your system after an abortion?
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The disappearance of HCG from urine is exponential, with a half-life value of 1.3 days. A urine pregnancy test with a sensitivity of 1 IU/ml wil nearly always be negative in the course of 2 weeks after abortion. A positive test 4 weeks after abortion indicates an incomplete abortion or persistent trophoblast.
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It takes about 2 weeks for your hCG levels to be high enough to be detected in your urine using a home pregnancy test. A positive home test result is almost certainly correct, but a negative result is less reliable. If you do a pregnancy test on the first day of your missed period, and it's negative, wait about a week.
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hCG levels can usually be detected in the urine about 10 days after conception. If you take a urine pregnancy test fewer than 10 days after conception, the at-home tests might give a “false negative” response.
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It appears shortly after the embryo attaches to the wall of the uterus. If you are pregnant, this hormone increases very rapidly. If you have a 28 day menstrual cycle, you can detect hCG in your urine 12-15 days after ovulation.
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This hormone is released when a fertilized egg attaches to the lining of the uterus. Urine pregnancy tests can detect levels of hCG about 10 days after conception, Moss told Live Science, while blood tests, usually done at a doctor's office, can detect a pregnancy about seven to 10 days after conception.
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It can take anywhere from 16 days up to 2 months for hCG levels in the body to fall below the levels detected by a pregnancy test. If you take a pregnancy test within that time frame, you're likely to test positive whether you're still pregnant or not.
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Levels can first be detected by a blood test about 11 days after conception and about 12-14 days after conception by a urine test. Typically, the hCG levels will double every 72 hours.
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As early as 11 days after conception, it is possible to detect the presence of this hormone in the blood and within 12-14 days when it is excreted in the urine. If you are having twins, then your hCG levels are likely to be different to another pregnant woman who is carrying one baby.
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hCG Levels After Miscarriage They should return to normal in about 4-6 weeks, depending on how far along the pregnancy progressed. “After a miscarriage has been completed, there is not typically any need to monitor hCG levels,” says Dr. Baldwin.
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No Period After Abortion Or perhaps you're cramping and spotting, but beyond that, your period is non-existent after 4-8 weeks post-procedure. In either case, you may want to take a pregnancy test. While it is rare, having no period about 4-8 weeks after an abortion may indicate: You are still pregnant.
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hCG is found in your blood a lot sooner than in urine. A positive test might be detected as soon as six to eight days after conception. You would need to visit your doctor to have a blood test, but they will likely advise you to wait till after your missed period.
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Confirming pregnancy After you conceive (when the sperm fertilises the egg), the developing placenta begins to produce and release hCG. It takes about 2 weeks for your hCG levels to be high enough to be detected in your urine using a home pregnancy test.
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Recent miscarriage or abortion The hormone can remain in your blood and urine for up to six weeks following the end of the pregnancy. It's possible to have a false-positive test until your hCG levels return to their prepregnancy state.
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When did I conceive? Pregnancy tests check for the presence of the pregnancy hormone, human chorionic gonadotrophin (HCG), in your urine. Your body begins to produce HCG after you conceive. If you get a positive test result on the first day of your missed period, it's probably about 2 weeks since you conceived.
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After a pregnancy loss, hCG levels will return to a non-pregnant range (less than 5 mIU/mL) between four and six weeks later.
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An abortion will restart your menstrual cycle. Ovulation, when an egg is released from the ovary, typically happens around day 14 of a 28-day menstrual cycle. This means you'll likely ovulate just a couple weeks after an abortion.
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Alternatively, your local doctor will be able to perform a blood test which will test for the presence of pregnancy hormone (HCG) in your blood. These tests are accurate only 5 days after conception but results usually take 12 – 24 hours to be returned. Sometimes your doctor may order a “quantitative beta HCG” test.