You can check your e-file status here- https://turbotax.intuit.com/tax-tools/efile-status-lookup/
In order to get the most accurate date your refund will be released from the IRS, you can check your refund status using Where's my refund here - https://sa.www4.irs.gov/irfof/lang/en/irfofgetstatus.jsp
Please note the IRS is delaying some users returns if you claiming the Earned Income Tax Credit (EITC) or Additional Child Tax Credit (ACTC) before mid-February 2018. I am including a link below that contains more detailed information about the PATH Act.
https://ttlc.intuit.com/replies/5556415