Your child must have lived with you more than half the year -- pick "all year" unless you are divorced or separated from the other parent. "All year" is the correct answer for a newborn. Also, the child must have a social security number. If not, don't file your return until you receive the SSN, even if you have to file late. You won't get any tax credits if you file without the SSN, and if you must wait and file late, you must also request the extension, or else you won't get the credits.
Then, the credits are figured on line 30, but Turbotax has not been updated yet. Try again after January 7.
