 A blood test should be able to pick up the HCG in your blood at about 7 days after conception. Some pregnancy tests say they can pick up … HCG in your urine from about 7-10 days after conception, but most tests you have to wait to about 14 days-when your period is due.
Answer     A blood test should be able to pick up the HCG in your blood at about 7 days after conception.     Some pregnancy tests say they can pick up … HCG in your urine from about 7-10 days after conception, but most tests you have to wait to about 14 days-when your period is due. Doctors often order these tests to confirm pregnancy as early as 10 days after a missed period. However, some of these tests can detect hCG much earlier. A quantitative hCG test (beta hCG) measures the exact amount of hCG in your blood. A blood test can detect pregnancy a week after conception. For most women, that would still be at least 1 week before they expected to start their period, so yes, your test results should be accurate. Good luck. 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. Urine tests or home pregnancy tests are around 97% accurate when done correctly. Home pregnancy tests are great to use because they can be done at home, they are usually low in cost (anywhere from $7.99 to $19.99), private, they give a fast result, and are easy to use. 1 Home tests are sometimes done too soon after the missed menstrual cycle to result in a positive test. 2  It typically takes 10 days after a missed menstrual period before the presence of hCG can be detected by the urine test. If the blood pregnancy test reveals that hCG is under 5 mIU/ml, then the test will be considered negative. If the level of hCG is determined to be between 5 and 25 mIU/ml, this is said to be an equivocal result, and another test should be performed in a few days to confirm pregnancy. 1 Convenience: While it is true that a quantitative blood test can confirm pregnancy a couple of days before an early detection HPT, a qualitative blood test that is set to detect 25 mIU/ml is no more sensitive than an early detection HPT. Advantages of having a blood test done: 1  Can detect a pregnancy earlier than a urine test at about 7-12 days from possible conception (but if a negative result is received, a test should be repeated if a period is missed.).
http://www.answers.com/Q/How_soon_can_an_increase_in_the_HCG_be_detected_in_a_positive_pregnancy_blood_test http://www.webmd.com/baby/guide/pregnancy-tests https://answers.yahoo.com/question/index?qid=20080723165307AAydYad http://americanpregnancy.org/getting-pregnant/understanding-pregnancy-tests/ http://americanpregnancy.org/getting-pregnant/understanding-pregnancy-tests/ https://labtestsonline.org/understanding/analytes/hcg/tab/faq http://www.early-pregnancy-tests.com/blood-pregnancy-test.html http://www.early-pregnancy-tests.com/blood-pregnancy-test.html http://americanpregnancy.org/getting-pregnant/understanding-pregnancy-tests/
how soon is pregnancy detected in blood