Did you actually mail the return? TurboTax does not mail it for you.
It can take approximately 6 weeks to get a Federal tax refund after filing a paper return by mail.
After approximately 4 weeks from mailing, you should see it in this IRS "Where's My Refund" tool where you can monitor it.
Does anything show up in the tool?
https://www.irs.gov/refunds
