I believe you need to wait for a license number. At this point all you did was pass a test but not yet licensed. I believe if you put PE on your name prior to a license number it is false identification.
I just did the same but in CT from my NY license. Without a NCEES record you have to file the forms and verify your current license as well as schooling and work experience. The NCEES record stores and verifies this information so you don't have to go through the hassle every time you file in a...
Still waiting on my license number! After I passed the test they made me submit a updated Form 1 because mine was over 5 years old and that was a week and a half ago! So frustrating......
I passed the Civil-Structural exam and for anyone looking to take this exam I highly suggest this book - All-in-one Civil Engineering PE Breadth and Depth by Indranil Goswami, Ph.d . It is a very helpful resource