Pregnancy Test Strip generally refers to an early pregnancy test strip. Generally, five days after a missed menstrual period, a pregnancy can be detected using an early pregnancy test strip. After conception, the trophoblastic cells of the embryo rapidly secrete human chorionic gonadotropin (hCG), causing the level of this hormone to rise rapidly in the body and metabolize into the urine, which in turn increases the hCG concentration in the urine. Early pregnancy test strips can detect hCG in urine with high sensitivity. When hCG reaches a certain concentration, it can be detected using an early pregnancy test strip. Typically, it takes about a week for the fertilized egg to form and implant in the uterine lining for the hCG level to rise significantly, which corresponds to about five days after a missed menstrual period. Generally, five days after a missed menstrual period, pregnancy can be detected using an early pregnancy test strip. When conducting a test with an early pregnancy test strip, it is recommended to use the first urine of the morning, known as morning urine, for testing, as it has a higher concentration and provides more accurate test results. However, to conclusively determine pregnancy, a blood test for hCG levels and an ultrasound examination are required at a hospital.
