You poor thing... 3 months to wait!! I was so lucky with both my birds as I didnt have to wait for either of them. I just chanced on Liath in a pet shop and fell in love and took her home, all in the same day.
And Oisin was advertised at 3 months, so again I went to the breeder and took him home.
I really feel for people who have to wait for their babies, and yours isnt even hatched yet!
On the plus side you will get to see your grey grow, where mine were almost adult sized when I got them!