What do I need to put on my withheld taxes per pay period?

[harmburr]

I added a dependent because I just had a baby this year, and somehow it decreased my tax with holdings to "0". So, I am asking what to put as the amount of taxes to be withheld.

[Critter-3]

Depending on your annual pay and filing status  a zero withholding may very well be correct.   But if you want to have withholdings again you can either  (A) remove the child on the W-4  and/or (B) enter a flat amount on line 4C to have withheld per pay period.  

[NCperson]

@harmburr - with a child, you are eligible for a child tax credit of up to $2,000 and you may be eligible for Earned Income Tax Credit, so it may be quite appropriate that the withholdings are zero.