Leaving significant other

Needing advice how did you manage to leave your boyfriend we’re just dating not married, we’re expecting both our first child in January, my entire pregnancy has been AWFUL, full of stress, full of fights, it’s just too much to even explain right now short story I need advice how you got out of a bad situation, I’m so close to my due date I will be on maternity leave with no pay, I’m needing to know what you think the best option is like do I wait until I get back from maternity leave get money saved out and move? I have no where to go no friends or family so I can’t just up and go now and definitely don’t have the money, so ladies how did you get out of that relationship and how long did it take you to leave and save up? What’s the best way to save up with a newborn?