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Re: negative pregnancy testFrom: Mia (anonymous@obgyn.net)Wed, 29 Sep 1999 16:24:34 -0500 (CDT)
During her second pregnancy a friend of mine was getting her period every month, had two negative home pregnancy tests, and negative tests from the lab. At 5 1/2 months the pregnancy was confirmed only by ultrasound, dont know why that was, but I guess you can't count on a negative!!!Mia At Sun, 11 May 1997, Noelle wrote: > >At Fri, 9 May 1997, Joel wrote: > >>I'm not used with US tests, but I understand you are using HOME tests. >>In France, these tests are known not to be very sensitive. So, I >>should have a blood pregnancy test. It's the only one you can be sure >>with. > >My midwives and OBs have told me that the home urine tests manufactured >nowadays (in the U.S. at least) are as reliable as the urine tests done >in the office (approaching something like 99% accuracy if positive) -- >often they are the same brands. False negatives are far more frequent >than false positives. > >They also told me that blood serum tests are useful for quantifying how >much beta-hCG is in your blood (to help determine if a pregnancy is >progressing properly early on) and that a blood serum test will pick up >the beta-hCG about 4-5 days before a urine test would, home urine or >office urine test. After several days, a urine test *should* register >positive if beta-hCG is present in high enough amounts. > >I have heard that some pregnancies NEVER show up as positive on urine or >blood tests, though......does anyone know if this is true?? > >-- >Noelle Haland >Mommy to Ethan Theodore, s/b 12/2/96 at 31 weeks >and "little bean" due 11/7/97 >
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