I am a mother of 3 with a husband I can not get rid of whatsoever. I have stayed with him for very few reasons but none of them were the right ones. I can not afford to get a divorce I was denied for legal aid and I was informed that if you put an ad in the paper you can get your divorce for free. I was wondering how that worked because I have kids with him and if I make him leave I am out of a vehicle to get back and forth to school or to take my kids to the doctors. Am I going to have to try to find the money to file through the courts since there is those obstacles or can I still do the newspaper ad cause I am completely lost with what to do

The 'in the paper' I am pretty sure you have to have certain requirements like abandonment and have been separated x amount of years.

... cause i am completely lost with what to do
It is a difficult and complex time. "You have the right to represent yourself, to be a Pro Se litigant but, the divorce process can be complex and I highly encourage anyone who can afford representation to seek it, if at all possible. If you choose to go Pro Se and represent yourself in your divorce case you should become familiar with your state divorce laws, the current version of your states Rules of Civil Procedure, your states Family Court Codes and the rules that are followed in your local county court. Your best resource of needed information will be a state law library; most have websites and your local Court Clerk’s Office." see: Pro Se Divorce - Do it Yourself Divorce (http://divorcesupport.about.com/od/yourlegalrights/a/pro_se.htm)
I believe you should retain a lawyer because your case is complex. Counseling is also a good idea during this time.