Yes you will have EA if you have made a pledge. If you ever logged into some of the pre-EA test stages then you just need to update your PC with the latest client. Then log in and play. If you haven't then I would see if you can find the old email you should have been sent when you made the pledge and create an account.
If all of that fails then raise a ticket with support and they should be able to sort you out. :)
The email with a game key for you was sent out last year in August. Emails from VR have wound up in spam folders for some people, that would be a good place to look if you don't find it in your inbox. If you don't, you can do as Elindar suggests and put in a ticket to Support and ask them to resend that email. Be sure to include in your ticket the email address that you used when you pledged (if you're using a different one now). The letter will have instructions in it, read carefully and follow them. Also, there is some extra helpful info about downloading and installing the game Here.