What is the 'Arithmetic Mean' The arithmetic mean is a mathematical representation of the typical value of a series of numbers, computed as the sum of all the numbers in the series divided by the count of all numbers in the series. The arithmetic mean is sometimes referred to as the average or simply as the mean. Some mathematicians and scientists prefer to use the term arithmetic mean to distinguish it from other measures of averaging, such as the geometric mean and the harmonic mean.
HCG can be detected in urine or blood after implantation, which occurs on average 9 daye (range 6-12 days) after fertilization. Some home pregnancy tests claim to detect hCG as early as 4 days before the next expected period.
Depending on the sensitivity of the home pregnancy urine test, you can detect pregnancy around 12-19 days after your date of ovulation. This means that women may test positive a couple of days before their missed period. In summary, it is possible to determine if you are pregnant around 9-10 days after having unprotected sex by doing a blood test for pregnancy, or after around 2 weeks (or more) using the urine test. Taking the tests too early may lead to a negative result, so you may repeat the test after a few more days. It will also help to note if you have early signs of pregnancy, although these may not be the same for every woman. Early Signs of Pregnancy