How can I separate when he won't move out?

[JellyBert]

I won't go into a huge backstory in my OP but I want to break up with my fiancé. We share a mortgage & both pay bills (no fixed contribution as he earns 20k more than me... but I pay childcare etc) & both contributed to the deposit. We have 1, soon to be 2 DC. I don't love him, I despise him now and I really want to get my deposit back & just rent somewhere with my children.
I can't do this without my deposit as I've just bought a new bloody car & owe my mum money so can't really lend any more off her.

So anyway, enough was enough today when he was yet again in bed at 4.30pm (so all day) after I'd finished work (I'm heavily pregnant so it's tiring at the moment) & then was moaning because I told him to pick DD up from nursery. I'm so fed up of his drinking, his smoking, his attitude, his lack of affection, his foul mouth. I told him I don't love him anymore, I don't like him, it's over. He knows I'm serious as we argue all the time, it's not healthy or normal.

I told him we need to put the house on the market because I want out. He said he isn't selling "his" house but there is no way I can afford to move out with the children without some savings (I only have 1k saved as my mat package is really good & im on an OK wage - 25k per year). He won't move out. Can somebody please tell me what I can do? Can I "force" to put the house on the market? I know I can't "force" him to leave but I need some kind of escape in place & I am not moving out, I can't afford to & I don't want to stay with family - it's still half my house!!

Can he afford to buy you out of the mortgage, so it becomes 'his' house and you get some cash for a deposit to rent somewhere?

That could be an idea if he remortgaged.
I think he could afford that but I think he's just being stubborn because he doesn't want it to be over.
I need to sit down and write down our options. I have been with him 5 1/2 years and I'm just done - I have nothing left to give but don't think he believes me. He says I want to take his kids away from him but I would never do that, he's a good dad generally but a terrible partner

I would get some legal advice about whether you can force him to sell.

Hi there. You can force him to sell but you would have to involve a solicitor. I saw one when my ex and I were separating. Thankfully he agreed to put our house on the market but he was awkward about it and then tried to pull out when we got a buyer. My solicitor said I could apply for some sort of order that would force the sale, and she didn't think I would have any problems getting it. I didn't have to do this in the end.
The only time its hard to force a sale is if the primary carer of the children wants to remain in the house with the children because its in their best interests.
Go and see a solicitor. You can get some who offer free consultation. I paid £150 for an hour with everything in writing. Good luck.