Pregnancy tests are conducted on a person to determine if they are pregnant after indulging in unprotected sex. One of the most common methods used by women to check if they are pregnant is by using the home pregnancy test kit. Although these kits may not be able to give you the best results in the early stages of pregnancy they are said to be accurate after a person has missed a period. Pregnancy can often leave a woman elated, nervous, happy, and excited and thrilled if the pregnancy is planned or expected. However, if they had not planned the pregnancy or if the sexual intercourse was with a stranger there is every right for a woman to be not just nervous but also scared.
If you have question on when can I take a pregnancy test to have guaranteed results, the best answer would be either after missing your period or after four to six weeks from the time of having intercourse. However, there are said to be many people with regular cycles who were able to get results even after nine to twelve days from the time of intercourse. These tests are said to be conducted usually using home pregnancy test kits. People who do not have normal or regular cycles are said to struggle to obtain the right result up to six weeks. So depending on how regular your cycles are you can choose to take up the home pregnancy test. Although it is possible for a person to be pregnant and still get a negative result with these tests it is impossible for the test to be positive when the person is not pregnant. So if a home pregnancy test comes out to be positive then you must be guaranteed that you are pregnant without a doubt.
If you have had unprotected sex and have not got your period beyond six weeks and if the home pregnancy tests are negative as well then you should choose to visit a gynecologist. They can suggest alternative methods to conduct tests to determine the reason for you not getting your period. You can also choose to look up on the internet for suggestions on when is the best time to take up a pregnancy test.