A question you didn't ask is: am I self employed?
There is an exception to income from babysitting being subject to self-employment tax.. You may have "household employee" wages. If no single employer paid your more than $1900 ($2000 2016), and you sat in their home, not yours, you may be able to avoid the self employment tax. But, you will also not get credit for these wages with the Social Security Administration, for future benefits.
In TurboTax, enter at:
Federal Taxes
Click on Wages and Income
Click on Explore on My Own
Scroll down to Less Common Income
On Miscellaneous Income, 1099-A, 1099-C click the start button
On the next screen click the start button on Other Income not already reported on Form W-2 or Form 1099
Answer Yes on the next screen and enter the amount under Household Employee Wages
TurboTax will put the income on line 7 of form 1040 or 1040A with the notation "HSH". It is still considered earned income for the earned income credit. But the IRS is leery of people claiming EIC without paying social security tax.
