TurboTax is unable to provide refund information on this public forum. Once your return is transmitted, you are then on the IRS timeline. To track your return, please see the link here.
Since it has been over 21 days since you submitted your return - There are a few explanations of why there could be a delay. There could be a refund offset or it could be due to the PATH Act. For more information on this, please see the Help Article here for further assistance.