It depends what was included in your return whether you need to contact the IRS. For more complex situations or for certain credits, there may be a slight delay to processing your return.
If there is unemployment income, for example, the legislation has changed within the last week to allow the first $10,200 to not be taxable. See: New Exclusion of up to $10,200 of Unemployment Compensation | Internal Revenue Service
For more information, see: What if my IRS refund is taking longer than 21 days?
