Mitochondria are tiny organelles inside cells that are involved in releasing energy from food. This process is known as cellular respiration. It is for this reason that mitochondria are often referred to as the powerhouses of the cell.
These tests can detect pregnancy earlier than a home pregnancy test, or about six to eight days after ovulation. But with these tests, it takes longer to get the results than with a home pregnancy test. Two types of blood pregnancy tests are available: A qualitative hCG test simply checks to see if hCG is present.
A blood test can also detect hCG. Blood tests are more sensitive than urine tests and can detect pregnancy from about six to eight days after ovulation. However you will not be offered a blood test for pregnancy until after your period is due, and even then only if there is a medical need.