Adenosine Triphosphate. Adenosine triphosphate (ATP) is considered by biologists to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we do.denosine Triphosphate. Adenosine triphosphate (ATP) is considered by biologists to be the energy currency of life. It is the high-energy molecule that stores the energy we need to do just about everything we do.
1 Home tests are sometimes done too soon after the missed menstrual cycle to result in a positive test. It typically takes 10 days after a missed menstrual period before the presence of hCG can be detected by the urine test.  All urine hCG tests should be done on a first morning urine sample, if possible.
A positive home pregnancy test means that you are pregnant. Home pregnancy tests work by measuring HCG (human chorionic gonadotropic, the pregnancy hormone) in the urine. Unlike blood tests for HCG, which measure the actual amount of hormone, home pregnancy tests just register the presence or absence of HCG. A positive result is quite accurate because the test will not register the presence of HCG unless it is actually there. If your test is positive, you are pregnant. Keep in mind that a home test only measures the presence or absence of HCG. It cannot tell you whether a pregnancy is healthy or whether you have had a miscarriage. You can have a miscarriage and your pregnancy test will remain positive for days or even weeks.