8 months pregnant and want to leave my kids dad

Did anyone else leave their partner during pregnancy? I just don’t want to be in a relationship with him anymore. I’m 8 months pregnant with our 2nd baby who will be here next month. He’s so good to me on the good days but when he has bad days he treats me like literal garbage, honestly worse than garbage. He has treated me worse during this pregnancy than he has the entire time we’ve been together. There have been so many times during this pregnancy that he’s been horrible to me and made me cry and stressed me out. I’m already dealing with horrible prenatal depression and every time he has treated me bad while carrying this baby the only thing I picture in my mind is being freshly postpartum trying to recover from another c section and trying to adjust to having 2 kids dealing with postpartum depression all while being treated like shit every other day when he gets in a bad mood. He does not do well in stressful situations and big life adjustments and he takes everything out on me during those times. If he doesn’t get enough sleep, if he has a bad day at work, if he misses work, if he doesn’t feel good, literally anything he lashes out towards me and I have to walk on eggshells around him until he’s in a better mood. That thought terrifies me but it also terrifies me to think about doing all that alone. Idk which would be worse. I have absolutely no family so if I leave him I’ll be 100% on my own. I’m just not happy anymore and I want to leave but i don’t know if I can do everything by myself. I feel like either choice I make is going to be beyond difficult.