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Doctor insights on: Can Blood Test Detect Pregnancy Before Missed Period

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How many days after a missed period should I get a blood test for pregbancy?

How many days after a missed period should I get a blood test for pregbancy?

Same day: You can wait longer but a serum (blood) test is reliable even a day or two before the expected missed period. ...Read more

Dr. Janice Alexander
4 doctors shared insights

Pregnancy (Definition)

When your due date arrives, you will be more than ready to have your baby! Most women deliver the baby somewhere between 37 and 42 weeks. According to the American College of Obstetricians and Gynecologists, only 5% of babies arrive on the exact due date. Approximately 7% of babies are not delivered by 42 weeks, and when that happens, it is referred to ...Read more


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How long before a missed period will a blood test detect pregnancy?

How long before a missed period will a blood test detect pregnancy?

Pregnancy: Great majority of pregnancies occur when coitus takes places within the 3 day interval just prior to ovulation. The first hormonal evidence of implantation (appearance of hcg) ocurred on 8 to 10 days after ovulation. Some commercial urine pregnancy test dont become positive until 5 days before your missed period. If negative and still suspect a pregnancy do a blood level pregnancy test. ...Read more

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5 days before missed period 6 home pregnancy tests say positive but blood test says 4 iu negative. Can I still be pregnant?

5 days before missed period 6 home pregnancy tests say positive but blood test says 4 iu negative. Can I still be pregnant?

Recheck: <5 IU in Most blood test is a negative test. But because you took test before you actually missed a period I would repeat another blood test after your period is due. Keep in mind, False positive/false negative tests can occur with commercial pregnancy tests. Blood test is more accurate. ...Read more

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Can you get a positive blood test for pregnancy 8 days before your missed period?

Sometimes, but...: That is very early, so often the test will still be negative, and one will end up retesting. Patience is a vital virtue for any aspiring parent-to-be. One should just wait 3 weeks after the estimated date of fertilization, and test then. ...Read more

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I had a negative blood test and two positive pregnancy urine tests, and a negative urine test also. But it's 6 days before my missed period still?

I had a negative blood test and two positive pregnancy urine tests, and a negative urine test also. But it's 6 days before my missed period still?

Can repeat in 1 week: Might be pregnant. A urine pregnancy test, done correctly, gives a reliable result 3 weeks after sex (3 weeks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. If a woman gets her normal regular period, then she is not pregnant. ...Read more

Missed Period (Definition)

A missed period is when you don't have a period at your normal time. Because a missed period can be due to pregnancy, even a period that is signficantly lighter or shorter can be considered a missed period and possible pregnancy. And having early symptoms of early pregnancy such as sore breasts or mild nausea would increase ...Read more