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3 positive HPT's and 1 negative Blood Test
I was wondering, is is possible to have 3 positive HPT's and a negative blood test? I was shocked when the blood test came back negative today. Comments?
thank you for the all the info. i am approaching 3 weeks late and am trying my hardest to wait a week or so to take the last pregnancy test i have... i decided not to get my hopes up. waiting is a bummer though... you think the wait is over after you get a positive! apparently not so much.
Lifeisbeautiful...yes. On December 6, 2007 I had a negative blood test. Had a second negative blood test on December 13, 2007. But then I went in for a pre-op on December 19 and had routine bloodwork done and came back with hcg levels of 23. I latered miscarried though, on January 7, 2008.
It could be a number of things... It's unlikely but possible that you got a bad pregnancy test (or batch, in your case, Nebraska). It's also possible that there is enough hcg to detect on an early hpt in urine (some tests are stronger than others, and tests within a brand are not consistent---some can detect at 12 where others won't til 30---even in same box), but not enough to report a positive on a blood test.
there are two types of blood tests, quantitative and qualitative. while quantitative just reports back a yes or no, the qualitative reports the exact levels found. Usually docs will run a qualitative (yes or no) first unless you request a quantitative. i remember learning somewhere that the thresholds at which these tests report a positive are often very different. and i do know that different labs have different assays (which is why when checking rising levels of hcg you have to use the same lab), but i don't know to what extent this may have an effect on your current situation.
Also blood can be "diluted" just like urine, so being overly hydrated can lower the level of hcg in your blood. But when all else fails, at the rate levels typically increase in a viable pregnancy, a wait of only a few days beyond those tests should yield a positive result if you are indeed pregnant.
If you go for another blood test, get a quantitative (think "quantity" of hcg). anything over 5 is indicative of possible pregnancy, though medically it is not considered positive until it has reached a 25. (some qualitative only say positive at 100+, others 50, and i think some at 25).
hope that helps, i know how stressful it can be.
i have had where i got faint positives, even took them in to show doc's office, and still came up negative. those were chalked up to chemical pregnancies. in a "chemical", you have a sperm fertilize an egg, it goes down to the uterus and implants (which is what causes hcg to start being produced), but the egg never develops (so your levels fizzle out and go away). it either breaks free and is lost that way from not being well-implanted, or there was something chromasomally wrong with it (often it's an "empty" egg---a dud) and your body recognizes this and naturally flushes it away.
there are two types of blood tests, quantitative and qualitative. while quantitative just reports back a yes or no, the qualitative reports the exact levels found. Usually docs will run a qualitative (yes or no) first unless you request a quantitative. i remember learning somewhere that the thresholds at which these tests report a positive are often very different. and i do know that different labs have different assays (which is why when checking rising levels of hcg you have to use the same lab), but i don't know to what extent this may have an effect on your current situation.
Also blood can be "diluted" just like urine, so being overly hydrated can lower the level of hcg in your blood. But when all else fails, at the rate levels typically increase in a viable pregnancy, a wait of only a few days beyond those tests should yield a positive result if you are indeed pregnant.
If you go for another blood test, get a quantitative (think "quantity" of hcg). anything over 5 is indicative of possible pregnancy, though medically it is not considered positive until it has reached a 25. (some qualitative only say positive at 100+, others 50, and i think some at 25).
hope that helps, i know how stressful it can be.
i have had where i got faint positives, even took them in to show doc's office, and still came up negative. those were chalked up to chemical pregnancies. in a "chemical", you have a sperm fertilize an egg, it goes down to the uterus and implants (which is what causes hcg to start being produced), but the egg never develops (so your levels fizzle out and go away). it either breaks free and is lost that way from not being well-implanted, or there was something chromasomally wrong with it (often it's an "empty" egg---a dud) and your body recognizes this and naturally flushes it away.
i have no answer but i am going through the same situation. i had a positive hpt saturday then negative blood test the monday right after and still no period... dont know what to believe now. i have been reading alot and theres a possibility that we could be experiencing a chemical pregnancy where the egg is fertilized but doesnt implant however i have experienced no bleeding yet and im not sure when or if you are supposed to. so confused! has anyone experienced this and actually turned out you WERE pregnant?
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