Effective April 1, 2011, code G0431QW is deleted from the Clinical Laboratory Fee Schedule (CLFS). Code G0431 describes a high complexity test, and should not be reported with a QW modifier; the QW modifier indicates a Clinical Laboratory Improvement Amendments (CLIA) waived test.
If this occurs with insemination or intercourse that is timed correctly, the egg may become fertilized. It is important to remember, however, that the hCG within the trigger shot will stay in your urine for 7 to 10 days so you may get a false positive on a home pregnancy test. Because of this, most doctors will wait at least two weeks to give you a blood test designed to test for hCG levels.
A pregnancy test detects the hCG (Human Chorionic Gonadotropin) hormone in your urine. The presence of this hormone confirms your pregnancy status. Many times, an hCG test proves to be negative even if you are pregnant. This is because hCG enters the blood stream 8-10 days after fertilization (before a missed period).The detectable levels of hCG in urine occur only 1-2 weeks after missing your period.any times, an hCG test proves to be negative even if you are pregnant. This is because hCG enters the blood stream 8-10 days after fertilization (before a missed period). The detectable levels of hCG in urine occur only 1-2 weeks after missing your period.