During pregnancy, a woman's body produces human chorionic gonadotrophin (hCG). This is secreted by the placenta soon after conception and increases throughout the first trimester, doubling every 1-2 days. The Crystal Clear test will detect hCG levels in the urine, providing an indication of early pregnancy. The test stick should be held in the urine stream for 5-10 seconds. Results may be visible in 2 minutes at room temperature (15-30 degrees C), however a final decision should not be made before 5 minutes. If the result is positive it is recommended that you test again in 3 days. If the result is still positive, see your doctor who will confirm the result and explain what steps you can take next.