I need an out plan anyone have any ideas?

For context me and my little just came back from a week long vacation today. Today was my breaking point. He’s two. We drove 7 1/2 hours home to see daddy bc he’s home from his contract job until Tuesday. I keep my house clean and I don’t mean just clean I mean I sweep, mop, every night and make sure the house is tidy. I am a sahm and he “provides” financially but not consistently so a lot of the time I’m going to diaper banks, food banks etc. cool.

Today I come home and before I left I cleaned the house top to bottom, he got home YESTERDAY, and everything is a fucking Mess. I’m also 5 1/2 months pregnant and I’m just so fucking sick of feeling like I’m the parent to every person in this house. My toddler? Yea understandable. A 34 year old man? No. Not understandable AT ALL. He didn’t buy groceries for our son so now the little bit of money I had left? Gone. There’s no toilet paper. There’s literally no food in the fridge at all. No juice, no milk. NOTHING. Just entirely and totally sick to my fucking stomach tbh and feel like this is the straw that broke the camels back. I don’t want to live like this, I can’t live like this and I didn’t come home from vacation for a week with my family just to be entirely stressed out all over again. It brings me to actual tears that he doesn’t give a shit about anything besides himself. He made time to go golfing this morning, made time to get a haircut? But couldn’t stop at the store and pick up baby wipes, toilet paper, juice, milk and something to eat? Selfish and self centered. Someone give me hope, a prayer, and an out plan to gtfo out of here.