Also, if the contract hasn't started yet you won't be able to use the tracker to track hours as the job won't be available on the tracker. You should wait to do any work on the project until the date of the contract, May 29th. If they want you to start on it sooner they need to change the date.
Nelda- At this point, stop working. Don't do any more work until the date that you're supposed to work. On that date when the contract becomes active, aside from using Tracker, enter the hours you've worked on for those 2 days. The client may or may not pay for that manual time. if they do, great, if they don't, expect that.