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.
Blood tests can take longer to process than other methods of pregnancy tests, but a blood test can detect pregnancy earlier and is 99% accurate. You'll get your results back within 1 to 3 days, depending on how busy the lab is.