If you have mailed your tax return the IRS says that you can start tracking it 4 weeks after mailing your paper return via the Where's my Refund site: https://www.irs.gov/refunds
For the future, one suggestion to give you peace of mind to know your mailed return was received is to send it by certified mail with a receipt returned to you.
To track your state refund, see FAQ below.
https://ttlc.intuit.com/replies/3300211
