Only the IRS can tell you.  IRS Where's my refund https://www.irs.gov/refunds/ 

Make sure you are using the refund amount from your actual federal tax return and not the combined amount Turbo Tax showed you at the end. That was for federal and state combined. 

Was your return Accepted?  You can check your efile status here https://turbotax.intuit.com/tax-tools/efile-status-lookup/