Did you actually file your return *AND* was it actually accepted by the IRS?
If you e-filed, you can check at https://www.irs.gov/refunds. If it shows your return was rejected, then your e-file was not accepted and your return was never filed. Period.
If you mailed your return, it normally takes 3-4 weeks before you'll get a status on that website. But for the 2019 tax season it may be months before you see anything. If you mailed your return without using a tracking service to confirm the IRS received it, then there's nothing anyone can do to help you. Mailing the return a 2nd time incurs a huge possibility of creating problems for you with the IRS.
At this point, if you e-filed your return and it shows a status of rejected, you have no choice but to print, sign and mail your return to the IRS. The IRS has closed e-filing for the 2019 tax season permanently and forever.
