I efiled 48 hours ago and the IRS hasn’t approved or rejected. In the past years I get it back quick. Could I have done something incorrectly

Not to worry!  The IRS is extremely busy this week. 

The IRS may take up to a week to update your return status.

If for any reason, there is an issue, the IRS will notify you by mail.

You can always call them.  1-800-829-1040

The IRS states the you should receive your refund in 21 days from the date the return is accepted by the IRS.

There are a few ways you can track your tax return.

• If you filed your tax return through TurboTax, you can view the status of your tax return by going to this site: https://turbotax.intuit.com/tax-tools/wheres-my-refund/
• You may also track the status of your return by visiting: https://www.irs.gov/refunds
• There is also an app: https://www.irs.gov/newsroom/irs2goapp

NOTE: Returns that included the Child Tax Credit or Earned Income Credit will be delayed until Feb 27th.

From <https://ttlc.intuit.com/questions/4278431-its-been-almost-a-week-from-the-refund-date-for-my-federal-still-have-not-gotten-my-refund>