Calm down people!
Just read the September thread and start reading two weeks before each interview deadline.
You will see that some people do indeed receive their invites starting 2 weeks before the final deadline.
People in those those threads ask the same questions and have the same fears you guy have.
The bulk of people start getting the invites in the last 3 days leading to the deadline. In our case, this should be starting May 11th.
So stop being scared and stop scaring others (r2hopeful change your name).