I filed my tax return Mid-Feburary and have not gotten it. I checked the IRS "wheres my refund" tool and it does not have any information. What can I do to get my refund?

How did you file--did you efile, or did you choose to print and mail the return?    If you filed by mail, then hopefully you physically printed and mailed it to the IRS; TurboTax does not mail it for you.

If you efiled, you should double-check to be sure the return was efiled successfully and accepted.  If you used Online TurboTax, you can sign into your Online Account and check the efile status at the Tax Home.

If the info at the Tax Home confirms it was accepted (or if you mailed the return), you can use the "Where's My Refund" tool at the IRS website below to check on the status of your Federal refund.  
https://www.irs.gov/Refunds

NOTE: When using that tool, be sure to enter the correct SSN and filing status.  Use only the Federal refund amount, and not any total refund amount that includes a state refund.  The amount to use is on your Federal Form 1040, Line 35a.

If the IRS tool says it is still being processed, here's how to reach the IRS to inquire about the delay, and I'll also tell you below how to reach the IRS Taxpayer Advocate Service, if needed.

IRS:  800-829-1040 (7AM-7 PM local time) Monday-Friday

When calling the IRS do not choose the first choice re: "Refund", or it will send you to an automated phone line.

• First choose your language.  Then listen to each menu before making the selection.
• Then press 2 for "personal income tax".
• Then press 1 for "form, tax history, or payment".  
• Then press 3 "for all other questions."
• Then press 2 "for all other questions." 
• It may then ask for your SSN, but do not enter it.  Just wait.    If it asks for SSN a second time, still do not enter it.
• Then it will get "tired", and you'll get another menu.  Choose 2 for "personal".
• Then in the next menu choose 4 for "all other inquiries", and it should transfer you to an agent but expect a long wait.
• I usually use a speakerphone so I can work on something else while waiting.

If you continue to have no luck reaching the IRS, you can try contacting the IRS Taxpayer Advocate Service for your area.    They are especially prone to help if you have an economic hardship, or if there have been continued delays with lack of info from the IRS.    At the following IRS website, find the USA map and click on your state, and it will give you the number of your IRS Taxpayer Advocate.    If the Taxpayer Advocate can't/won't help you, ask them to transfer you to an an IRS agent.  A couple of users reported that at least for them, that was a backdoor route to the IRS.

http://www.irs.gov/uac/Contact-a-Local-Taxpayer-Advocate

Also see this article for more info on how the IRS Taxpayer Advocate Service works::
http://www.irs.gov/taxtopics/tc104.html