There are a variety of different early pregnancy test types that can be used to detect pregnancy earlier than traditional pregnancy tests. The most common early pregnancy test used by women presently is the home pregnancy testing kit. These tests can be purchased from pharmacies and drug stores and are a reliable form of early pregnancy test. A home pregnancy kit usually professes to be at least 97 percent accurate. It is highly unlikely that a positive result from an early pregnancy test would prove to be false. However, these home pregnancy kits are not as accurate if you use them less than one week after a missed period. This is because the levels of hCG in the urine are diluted for the first few days of pregnancy and this can lead to hCG not being detected by some of the early pregnancy test kits.
There are a number of brands of early pregnancy test kit available on the market, and these tests constantly strive to detect smaller amounts of hCG in a woman's urine. It is still most accurate to use a pregnancy test kit around a week after your period is missed. If you have a negative result then you can always redo the test with another early pregnancy test a week later to double-check the result. Doing so will allow the hCG levels to have increased to a level where they are sure to be detected by the early pregnancy test kit. The best time to use an early pregnancy test kit is right away in the morning when the urine has built up over night.
Doctors and other health professionals can do a blood test to perform an early pregnancy test. This blood test can be done much earlier than a home pregnancy test kit. Indeed, this pregnancy test can be performed one week after ovulation, which is about a week before your period is due, and still provide accurate results. The accuracy of a blood test used for an early pregnancy test can be at least 99 percent. Of course, it is important to perform another early pregnancy test if the first was negative and you still have not had a period a week later. Your doctor will also take into consideration any other factors that may lead to you missing a period before another pregnancy test is ordered. Sometimes, there can be errors made by the testing lab which affect the result of the early pregnancy test and it is worth doing a retest if there is any doubt over the accuracy of the test result.