Lawyer fees

My kids are my world. I have 6 littles ones, at the end of a divorce, and money is extremely tight. Recently the oldest boys' biological father has come back into our lives after 13 almost 14 years. He is taking me to court. My laywer's retaining fee is $4000. I am asking for a little help. Anyone who knows my story knows this is not a good thing. Any little bit will help. We go back August 23rd. I would need to pay the lawyer within the next two weeks. I love you all and thank you!