Accepted on 1/14 and still not approved yet?

You will stay in an accepted status for up to 21 days until the IRS fully reviews your return and approves it. Then the status will change to approved. For more information on the accepted status, please click here. 

My return was "accepted" 1/15 & has not been approved either. My return is usually approved within 8 days & deposited within 2 weeks. I don't know what happened this year.