The Catherine Foundation provides FREE urine pregnancy test.
A pregnancy test detects a hormone called hCG which is released when you become pregnant. Once it reaches a certain level it may be detected by a blood or urine test.
If you have a negative test but believe you are pregnant, it may be too early to detect the hormone. Take another test in a few days. The hCG level usually doubles every 48 hours.
Results may be a positive or negative (qualitative blood test) or a number to be interpreted by a physician regarding hormone levels (quantitative blood test).
This test is more expensive and requires a doctor visit.