1. What is the answer to whether pregnancy can be detected at 6 days? Under normal circumstances, pregnancy cannot be detected by conventional maternal urine test sticks after 6 days of pregnancy. Because after the fertilized egg implants, the human body will secrete a hormone called human chorionic villus (hCG), which will gradually increase until it reaches a level that can be detected. Normally, you need to wait until about 7-10 days after the fertilized egg implants before conducting a urine test.