Test results go in the actual cells.....so if you test before feeding/shooting at 7am, the test number you get goes in the AMPS cell, and when you test before feeding/shooting at 7pm, that test result goes in the PMPS cell. Take a look at China's spreadsheet (in my signature below this comment) for examples
If I were you, I'd get a Relion Confirm or Micro from WalMart to hold you over until Wednesday. Human meter's aren't that far off from pet meters and it'd be a lot safer than shooting without testing at all. At least you'd know if you were running into trouble.
Thousands of us have used human meters to test our kitties