A lot will depend on the judge in your county, but I think you have some things going strong in your favor. It's very good that you have a job and provide for your family-- that may very well keep you out of jail, significantly reduce your jail, or limit your jail to weekends. If you are not already, you need to enroll in an AAA program and/or some other rehab program which the judge may order anyway. Definately expect probation and maybe even vehicle immobilization. But a lot just depends on the judge.
I do a lot of DUIs and criminal representation so feel free to give me a call at (517) 614-1983 to further discuss your case.
Sign up to receive a 3-part series of useful information and legal advice about DUIs.