It can take anywhere from a few days to 3 weeks to update and show the status. The 21 days is just an estimated time frame. The IRS began processing returns on 2/12, you may not find a record of it or the website may say that you have put in incorrect information when tracking your federal refund. As your return moves through the system, the status of it will be updated.
Since Turbo Tax will not have the status of your refund, continue checking the Where’s My Federal Refund tool for updates. Updates are made daily, usually overnight.
What does pending mean?
Please use this link to track your refund from the IRS
Tax Season Refund Frequently Asked Questions