After you file

I filed april 2nd my federal and state was accepted april 4th which was a saturday my refund has been saying ur refund is still being processed a refund date will show as soon as available I've not called the irs yet and havent recieved a letter can someone tell me what's this mean? A friend of mine her done it but her changed backed but she had filed jan.28 and she got her refund fed.29 I'm really needing sum answers if anyone can help me