Did you efile the Federal return, and was the efile accepted? If you used Online TurboTax, you can check at the Tax Home page.
Here's how to begin investigating. What message do you receive at the IRS "Where's My Refund" tool when you enter the tax year, SSN, filing status, and the Federal refund amount from your Federal Form 1040, Line 35a?
https://www.irs.gov/refunds