I am very sorry to hear this Jerred.
Maybe she is just saying this to hurt you. Most mothers would not through their child out. When she comes home, don't confront or fight with her. If she starts getting nasty, try not to fight with her. Be calm and explain you were telling her how you felt and who you are. Then tell her if she wants to kick her child out into the cold without shelter because she hates who you are then so be it. Play on her guilt. It sucks that you have to do that, but parents really hate when they hurt their child. Calmly through that into her face. Don't be hostile when you say these things. Just say it hurt and really defeated. Most parents would feel too disgusted and guilty to do that to their child when they have done nothing wrong. Seeing you more upset and hurt may lower her hostility and weaken her stance.
If that doesn't work, I would reach out to some friends or somebody you know in your area. If you don't mind sharing, where is it you live? Maybe somebody on this board can help in some way.
Lastly, does your sister know at this point? Maybe she can provide you shelter for a short time until you can get a job and shelter.