Please Help Me Get My Son Back

I hate putting my personal business out for the world to see but I need to put my pride aside to ask you all for some help. 
This past Sunday night, I found out my (now ex) boyfriend was cheating on me with another woman and was planning on leaving me for her. When he told me I was extremely upset and threw a few items in our home in frustration. Nothing was thrown at him or hit him. Liam was not in the apartment when this happened and was not in danger. What happened was 100% not assault on my ex.
On Tuesday morning at work I was served with a court papers claiming that I have temporarily lost custody of Liam over being abusive and a danger to him and my ex and that there is now a protective order against me from him and my ex. Meaning that I have no way to know where Liam is,  I cannot contact him or my ex or go back to my own home. My ex is claiming that I physically abused him that night which 100% did not happen.
I need help to pay for a lawyer disputing the charges against me. Those of you who know me well know that Liam is my entire life and I would give anything to be with him. I was home every night with my son for 15 months while my ex was out with his other girlfriend planning to leave me.  He does not in any way, shape or form deserve full custody of our son. 
Our court date is this Monday and I need to pay my lawyer $2000 by Sunday night. I can’t make that kind of money on my own in such a short time frame. I hate asking for money and I hate even more that everyone will know about this mortifying time in my life, but I’d rather be embarrassed than be without my son. 
Please help me pay for this lawyer. I won’t be able to pay everyone back who donates but when I get my son back I can personally send out finger paintings from Liam himself and homemade cookies/brownies. 

Thank you for reading. I love you all.