We're going to have a $100 per month envelope system in the interim period for the child. I expect that will be $200 or so once she is completely ours. The mother has a life insurance policy and I'm not sure how much if any will go to her. Generally speaking, I don't consider children to be a huge expenditure. Sure, they need things and it can add up, but it's not like a house or car payment IMO. With no debt, it's definitely a lot easier.