Did you efile, or did you print, sign, and mail the return?
If you efiled, double-check with this tool to be sure the return was efiled successfully and accepted. What does this tool show?
https://shop.turbotax.intuit.com/efile/efile_status_lookup.jsp
If that showed it was accepted (or if you mailed the return), what do you see at the IRS website below for the status of your Federal refund?
https://www.irs.gov/Refunds
If that IRS tool shows that the refund has been sent, but you didn't receive it, report back for more info.
If the IRS tool says it is still "being processed", we can tell you how to speak to a live agent at the IRS to see if they can tell you anything about the delay, and if necessary, the Taxpayer Advocate Service to expedite things.
To track a state refund:
https://ttlc.intuit.com/questions/1899433-how-do-i-track-my-state-refund