Get your taxes done using TurboTax

If you qualified for it then TurboTax automatically computed it.  Child Tax Credit is not refundable it only reduces your tax liability, only the Additional Child Tax Credit is refundable.

If you have 2 children under the age of 17, then you should have qualified.  Look at the copy of your printed return, Child Tax Credit would be shown on line 52 of the 1040  or Line 35 of the 1040A.  It is up to $1000 per child.
♪♫•*¨*•.¸¸♥Lisa♥ ¸¸.•*¨*•♫♪