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When you are pregnant, you and your baby join together via an organ known as the placenta. The placenta produces a hormone known as human chorionic gonadotropin (hCG). The presence of hCG in your body is detectable in your blood stream and in your urine. The QuickVue pregnancy test, manufactured by Quidel Corporation, is a one-step urine test that only requires three drops of urine in the sample well to produce a result.