From the Stickies:
All invite waves have now been sent. We'll be sending more invites tomorrow, starting from 8AM CST (6AM PST / 9AM EST / 2PM GMT / 3PM CET).
The day you pre-ordered doesn't matter. It's the day you entered your code that matters. If your account says you did that 10.02.2011 then you should be in the first wave, yes.