I have been checking the irs tool to see when i should recieve my federal return it was accepted on 2/12/21 the site still says its being processed.

Did you have unemployment benefits. So to not have to process thousands of amended returns, if you had unemployment benefits the IRS could be holding your return for processing once their systems are updated for the American Rescue Plan Act that excludes the first $10,200 of unemployment benefits, if your adjusted gross income is less than $150,000.   

If you have earned income credit and/or additional child tax credit, it is probably delayed. Returns with either of these credits are covered under the PATH act, which gives the IRS authority to delay the refund to verify dependent information on your return. For 2020, the IRS was not issuing refunds for these returns until after the 1st week of March. 

Do you have any refund offsets such as back taxes, student loans, child support, state obligations (Court costs), etc. This could delay your refund. If you answered the stimulus questions incorrectly, this could delay your refund. Keep checking IRS.gov "Where's my Refund" for the most up to date information.  If there is a problem with dependents, offsets, or filing issues, you will receive a letter.