The total cost of having a baby in the first 2 years falls somewhere between $12,462 and $26,612. You can break this down to something like $500 to $1000 a month. Here's a breakdown of the actual numbers... the cost to have a baby, plus the cost to raise a baby for the first 2 years.The total cost of having a baby in the first 2 years falls somewhere between $12,462 and $26,612. You can break this down to something like $500 to $1000 a month. Here's a breakdown of the actual numbers... the cost to have a baby, plus the cost to raise a baby for the first 2 years.