Congrats Mary! That is a great achievement, I hope your book does well. Have you considered selling it very cheaply for the first couple of weeks (or even making it free). I know it's not ideal to give away your work but it might bump you up in the Amazon stats if you get a few reads and reviews/have a trickle effect. Even pretty well known authors have fire sale weeks with their e-books, you might get more people willing to take a chance on you as a new author. I am not an expert in this stuff at all so take my opinion with a grain of salt, I have read a few articles on it that suggest this tactic though. Best of luck!