The manufacturer includes instructions for using its pregnancy test, notes the American Pregnancy Association. The earliest a woman should take a test is 14 days following conception.
A home pregnancy test screens urine for the pregnancy hormone hCG, the American Pregnancy Association explains. Instructions for the test usually call for collecting the urine in a cup, and then dipping the test stick into the urine. Some tests may require collecting urine in a cup and using a dropper to place the urine in a container, whereas others require holding the test stick in the urine stream during urination. If the package contains two tests, the woman should test her urine twice.