Hi @walterpaulkraft, you can use our E-file Status tool to check the status of your returns: https://turbotax.intuit.com/tax-tools/efile-status-lookup/
Also, when you log into your TurboTax account, you should be able to see in your Tax Home whether you have filed.
Finally, please make sure you are logged into the account you filed with for this tax year, if you have used multiple accounts in the past.