Hamilton is probably not GTA. But it's in the Golden Horseshoe which often symbolizes the Toronto area. Oshawa I am divided on. Could be GTA... or not.
Doctors often order these tests to confirm pregnancy as early as 10 days after a missed period. However, some of these tests can detect hCG much earlier. A quantitative hCG test (beta hCG) measures the exact amount of hCG in your blood. It can find even very low levels of hCG.
The earliest a pregnancy test can be positive is 3 weeks and 3 days pregnant. That's because in retrospect conception takes place at 2 weeks 0 days pregnant roughly. And the earliest a home pregnancy test can detect a pregnancy is 10 days after conception.