It takes up to 21 days for you to receive your return. Keep in mind it takes a few days for the IRS to receive mailing Plus the 1 day for the return to get accepted. Then it also takes a few days for the Paper Check to get to you once the IRS has already sent it. If it has been about 2 weeks so far you should probably be receiving it in your Mailbox soon. You can use the link below to Check if your Return has been sent to you
https://www.irs.gov/refunds
**There is also a mobile app to the link above (IRS2GO)**