If you are in the US, you DO have the right to legal aid if you qualify financially. This includes domestic cases, like divorce.
If you have to appear in court or file any type of a document before you are able to obtain the services of Legal Aid, announce to the court that you need a continuance as you are in the process of obtaining services from Legal Aid. Call the Clerk of the Court where your spouse filed the case (if it is filed yet), and tell the Clerk what you are doing. Ask for direction from him/her. A court clerk is invaluable in providing free guidance, but he/she CANNOT represent or advise you -- they can only direct you.
Representing yourself, especially if kids and/or any amount of money is involved, is a very very bad idea.