I got pregnant 2 weeks after discontinuing the pill. (much to my surprise, and no...I was not trying) I now ignore the 'averages'.
I think you have to go into it with the thought that it would be fine if it happens right away (if not, use other methods for the interim) and also knowing that it may take a good deal of time. There is no way to know what will happen with you, unless you have access to a crystal ball, LOL.
Good luck to you!