This is not really a legal question. My suggestion is that you sit down calmly with him and agree that the relationship is over and that you simply need a month to find a new place to live or to arrange to move elsewhere.
You have no legal right to remain in your boyfriend's home and presumably, as a result of what was said during that fight, he no longer wishes to live with you. If he does not want you to live with him any longer, then my suggestion is that you ask him for some money to permit you and your son to rent an efficiency apartment for the next several weeks to find a new place to move to.
If he locks you out of the home, then ask the local police to intervene and speak with him about permitting you and your son to remain in the home for the next few weeks to find a new place to live.
Answered on Nov 29th, 2021 at 11:08 AM