Do not refile a return that is being processed. The IRS is apparently reviewing your original return, which may take some time. I don't think you'd even be allowed to file again, but if you were it would only create confusion.
*** I am NOT a tax expert. I am a seasoned TurboTax user, and volunteer to provide assistance to TT users. Nothing I post is to be considered TAX ADVICE; I bear no legal liability for responses.***