Pending simply means that your e-filed return is on its way and that the government hasn't accepted or rejected it yet. Until they accept or reject it, they won't have any record of it. Also, once you've been accepted, wait at least 24 hours before you use the IRS WMR site. If you jump the gun, you may be told – incorrectly – that you never filed.
Please see, FAQ for more information regarding pending return: https://ttlc.intuit.com/replies/3302106
Here's a link to help you track your Federal refund: https://www.irs.gov/refunds
Click here to track your State refund: https://ttlc.intuit.com/replies/3300211
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