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

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I missed periods for 10 days I did urine and blood test and both came negative but I still miss my periods does the blod pregnancy test is accurate ?

I missed periods for 10 days I did urine and blood test and both came negative but I still miss my  periods does the blod pregnancy test is accurate ?

It should be: accurate at that point. Reasons for missed /late periods: low body weight, obesity, marked weight gain or loss, over-exercise such as in endurance athletes, breast-feeding, stress, illness, eating disorders (bulimia or anorexia), travel, hormone irregularities, drug use, medications (i.e., birth control) or med problem (polycystic ovary syndrome or Asherman’s syndrome. #1 reason is pregnancy. ...Read more

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Dr. Adam Lewis
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 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

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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

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I have missed my periods and no pregnancy blood test negative for my beta hcg. What othet test i can do to rule out my missed period reason.

Multiple: You need to see your gynecologist. You can be evaluated for abnormalities of pituitary function, since that gland regulates the ovaries through hormones; also for primary ovarian function. You may need a biopsy of the uterine lining to see how it responds to hormonal stimulation. There may be other tests. ...Read more

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4th day of missed period (30 day cycle). Getting pregnancy symptoms but negative hpt (strip). Also have uti. How soon can I take a blood test.?

4th day of missed period (30 day cycle). Getting pregnancy symptoms but negative hpt (strip). Also have uti. How soon can I take a blood test.?

Try another test: Most hpts are pretty sensitive and should be positive by a missed period. A negative hpt, assuming it was done correctly, is pretty accurate. If you are concerned it was false, you can do another one 48 hours later. This will save you a blood test. Two negative tests make it pretty clear it's negative. Symptoms may actually be the start of a cycle as well. The UTI shouldn't interfere with this. ...Read more

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I have a missed period not normal 17 day late ultrasound can see sac or fibroid. Blood test on day 10 neg. Chance pregnant remedy for pregnancy

I have a missed period not normal 17 day late ultrasound can see sac or fibroid. Blood test on day 10 neg. Chance pregnant remedy for pregnancy

Tests are accurate : If you have taken pregnancy tests at home and they are negative then you can rest assured that you are not pregnant. You will need to see your doctor to discuss irregular periods. I would also discuss birth control options to avoid an unplanned pregnancy and avoid these scares in the future. ...Read more

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After 4 days of missed period, blood test for pregnancy is done.But it was negative.No period untill now.We are trying to conceive.Can still b pregnant?

Clarification: What does 'no period until now' mean. If it means that your period was late but that you now have it - you are not pregnant. Late period reasons: low body wt, obesity, weight ^ or v, ^exercise, endurance athletics, breast-feeding, stress, illness, eating disorders, anovulatory cycle (no egg released), travel, perimenopause, just starting menstruation, hormone irregularities, drug use, meds etc. ...Read more

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If my blood test taken 12days af yer the missed period for bhcg came as 0.4 & home pregnancy test also negative. Can i be sure I am not pregnant.

If my blood test taken 12days af yer the missed period for bhcg came as 0.4 & home pregnancy test also negative. Can i be sure I am not pregnant.

Home pregnancy tests are very accurate.: They are the same tests used in a doctors office. They can detect a pregnancy 7-10 days after conception. The best time to take one is when you miss your period.  if you doubt the result you can repeat it in 1-2 days. If you were pregnant the hormone level would rise enough for detection. ...Read more

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Preg test positive but blood test negative missed period?

Preg test positive but blood test negative missed period?

Timing: It is possible that the urine pregnancy test detected HCG that was in the urine even as a pregnancy was failing (impending miscarriage) but by the time a blood test was done, the miscarriage had already occurred and the levels of the HCG pregnancy hormone were cleared. Alternatively, it could have just been a false (+) urine pregnancy test. ...Read more

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The first day of my missed period was feb 23rd 2014.I got a blood test on march 6, 2014 with an hCG level of 226. How far along am i?

The first day of my missed period was feb 23rd 2014.I got a blood test on march 6, 2014 with an hCG level of 226. How far along am i?

Not known exactly: The embryo gets implanted within 10-14 days of a fruitful intercourse. If the first day of the missed period was feb 23rd, you conceived about two weeks before that the embryo got implanted about 2-5 days before feb 23. Hcg levels are not a good guide to the duration of pregnancy, as there is wide variation in normal results. ...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