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.
10. A positive pregnancy test: If your period is at least a day late, and you're ready to know the truth, you may want to take a home pregnancy test. A urine pregnancy test can be accurate as early as 10 to 14 days after fertilization.If you can't wait until a missed period, a blood pregnancy test can be accurate as early as 8 to 10 days after fertilization. Keep in mind that pregnancy tests are not 100 percent foolproof -- not even blood tests.0. A positive pregnancy test: If your period is at least a day late, and you're ready to know the truth, you may want to take a home pregnancy test. A urine pregnancy test can be accurate as early as 10 to 14 days after fertilization.