When using home pregnancy tests...

Heather
Four days prior to my expected period is today. I was anxious and couldn't wait two days ago and tested.
Of course it came up negative... Silly me... Now I just feel like it's not going to happen.
​Anyway! Now that the day has come, can anyone recommend when to take it? Has anyone seen results four days prior? Morning? Night? Would anyone recommend waiting a couple more days?
​Much appreciated!