No news is not bad news at this point. If you receive a rejection email, then you will know there is an error.
It can take up to one week for the IRS to update their status for you.
Just keep a check on your status through their site : https://www.irs.gov/refunds
If for
any reason, there is an issue, the IRS will notify you by mail. Also, if there are any issue the IRS will post it on your status for you.
You
can always call them. 1-800-829-1040
