Pregnancy Symptoms and Signs

Many manufacturers claim pack test, this tool has the accuracy to 95%. But be aware, this claim is based on controlled experiments in the laboratory. Not much scientific data about the research use of this pregnancy test outside the laboratory, which is now used by consumers. Study ever conducted in the U.S. shows, 12.5% of this tool test results are not accurate. Mostly because the instructions in the test pack is not understood by consumers, or used the wrong way. But the positive results detected by this tool are usually accurate, higher than the negative results are not accurate.