I’m so so sorry you are in this situation. I don’t have any great advice. But I do wonder if you have any friends or family that know what’s going on.

Your partner sounds like a misogynist and is financially abusing you. It’s ridiculous that you were shouldering the cost of raising a child and doing all the work. And when you can’t anymore, he just makes you totally drop expenses instead of pulling his weight and helping.

My recommendation would be to fill in a trusted friend or family member that could help you find a place to stay until you are back on your feet. You and your kid deserve better than this. He’s trying to manipulate and degrade you into accepting this. My bet is he thinks it’s working.