@amyeschofield - You have multiple accounts. Go to the Login screen for TurboTax 2013 and click Forgot My UserID or Password. From there, follow the steps to get your UserIDs provided to you. Your data is likely in one of the other accounts.
If you did the 2013 return online, simply log back into your account>click tools>return manager and look to see what returns are listed. Please print a copy ASAP as returns are not kept on file for a full two years.
This feature does not work for me. The method used below works and is only the 2013 return, not the 2014. Too bad Intuit cannot figure out how to do this better considering how long they've been in the tax return business.