Gina,
Better to be safe than sorry, I would wait at least two more weeks and check the water parameters once more, if they are still all at zero, then you should be okay.
Live sand, live rock and natural water are all great precusors of a fast cycle but, you never can be too careful in reefing.
The only time you can get started before a month is with BioSpira from Marineland. You can add in fish the next day.
I believe in waiting since your tank will be more mature for your critters.
Don't do any water changes during this time, as you want your tank to cycle quicker, if you do water changes in between you could prolong the wait.
The clean up crew is the best set of critters you can add to a cycled tank to start the break down process.
Then you can start your addition of your corals and your favorite fish.
MG