The most common reason relating to your issue is users who have more than one TurboTax account and don't realize it. In order to access your return, you need to use the EXACT login info (same username and password) that you used when preparing the return. See if the TurboTax FAQ below helps you out.
"Why can't I find my return in Tax Home or My Docs?"
https://ttlc.intuit.com/replies/3290682
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***
