Go through the court system as that way his child support will be taken from his paychecks before he even gets it. This way you wont hear the excuses " Ill give it to you next week, Oh my car broke down, I just cant pay it I need _____ .

Hannabee Gave you great advice and numbers to think of that will help you when you file the papers for child support. Asking him to do whats right is never going to happen.. Also its typical for child support to increase each year as you both will be asked to provide income information.

Just go file the papers. The cost of raising a child only gets higher as they get older.