Get your taxes done using TurboTax

the IRS is far behind in processing paper returns. I suggest you check the IRS website to see if there's a transcript.https://www.irs.gov/individuals/get-transcript 

if it exists, then you know the IRS got it.  however, there's no way to check on the refund status except to call

Have your return handy when you call for verification purposes. The IRS refund information number is 800-829-1954.

if there is no transcript, then either the IRS hasn't gotten to it yet. highly possible, or it got lost in the mail. no way to tell which. did you use a method where you got proof of delivery or tracking info?