If a woman is pregnant, the amount of hCG (a special hormone released in great amounts during gestational period) in her systpo, 100 mIU atem must be around 25 mIU at 10 dpo (days past ovulation), 50 mIU at 12 d nearly eeabout two weeks dpo. Blood tests can detect pregnancy as low as betwn 5 to 10 mIU/hCG, although with levels of 5 mIU, a decisive determination cannot be ruled out without risking a "false positive" (because the low levels hCG can be present in the woman’s body that is not pregnancy).

Drugstore early pregnancy test generally detects the pregnancy at 50 mIU - 100 mIU hCG, although one can find early-detection pregnancy test on the Internet that claim sensitivity level as low as 20 mIU. With all diagnostic products, one should take care of the instructions written on the products or in the manual.

There are two main types of pregnancy tests, the one that uses urine and the one that requires the blood samples. Both tests are formulated to detect the hormone known as human chorionic gonadotropin or in short hCG. This hormone is produced when the placenta start developing once the embryo has attached to the uterine linings. Although blood test tends to have less false readings, the presence of the hCG hormone might easily be detected in urine based tests.

Usually, the health care providers will perform various blood tests in order to determine whether or not the woman is pregnant. In addition to the testing for the presence of hCG, a health care provider can advise to run another panel for determining the overall health and levels of vitamins or nutrients that are required for the woman’s body and also for the fetus’. This will provide the health care provider with a basic knowledge of what to be prescribed as prenatal vitamins and medications for insuring the both; mother and child’s healthy lives.

In case of a urine based early pregnancy test, there are a couple of methods to perform the test available. The first method includes the woman urinating in a cup and then immersing a special pregnancy test stick into the cup for a particular period of time. This test usually has more accurate results as the instructions are more probable to be followed. Generally, if the woman visits a clinic and if they get her a urine based test, this is the type of test that the pregnant woman will find.

Nevertheless, the most popular method of early pregnancy test can be found as OTC (over the counter) things that require the women to hold a special pregnancy stick in a stream of urine for a particular amount of time. Such tests tend to be the most popular as there is less mess and the procedure is very simple to follow and easy to adopt. There are even versions of this test that can trace out the hCG pregnancy hormone nearly few hours after the embryo has implanted in the uterus walls.

For the individuals who are far too unquiet to receive the news than the normal waiting period required for even the earliest detecting urine tests, a blood test must be used and such blood tests can be administered up to a week after a possible conception, hence, they are a favorite among couples who have been suffering from the infertility problems.

Furthermore, a blood test might be more accurate way to measure the levels of hCG found in a woman’s body so that potential troubles or complications with the pregnancy may be immediately detected and so can be treated well. Nevertheless, keeping in mind that the woman should visit an obstetrician’s office in order to have a blood test for determining whether or not the woman has successfully conceived is always favorable. This will often cause the pregnant woman to incur costs associated with the visits and the testing charges. If money is the concern, many women’s health care centers provide pregnancy testing with a cheap price. Every woman ovulates at different times in her menses and embryos implant in the uterus is also during different time. Therefore, the accuracy of HPT results differs from an individual to individual. There are many other things that can also affect the accuracy of the early pregnancy tests.