I'm going to say this again.
Police. The very least thing you have to complain about is that he shared pornographic images of you without your consent. But I'd bet the mortgage that if you were to describe your "sex life" to a professional, it'd sound a lot like rape/coercive sex, and with goid reason.
Just grab his phone and your DD and go straight to the local police. They can do a forensic examination of his phone to determine what he's done with your images, and this may well lead to his friends being called in themselves. It's gonna be huge, but that's exactly the best part! They get to hear from a source they'd have a smidgen of a chance of respecting (cause it sure as feck ain't going to be you or any chick they'll believe) that what they have done is ILLEGAL and abusive. Might actually put the fear of - well, something into them.
Don't make the mistake of worrying that you're going to "ruin his life". Prosecutions like this rarely result in jail time, more's the pity, but putting this in the hands of the police will:
- get you out safely,
- might bump you up the priority list for refuge/housing, and
- since it's sexual abuse (it is! Start getting used to that in your mind), you will be eligible for Legal Aid.
You're probably correct that you won't be entitled to any of his house if you're unmarried and not on the mortgage or title deeds, but he will be required to pay Child Maintenance going forth.
As a single person you'll be entitled to tax credits, council tax reduction. You won't be bathing in champagne
, but it's very doable. Do a search for entitled to website and run some numbers.
I don't think you've said how old DD is, but xx hours of free childcare starts at age 2 for some income brackets, so that might be a possibility now or soon.
OK, maybe not tonight. Your plan to talk to Women's Aid tomorrow is good. Don't hold back or minimise - tell them everything! And definitely get precious and important things out of the house: paperwork, heirlooms, baby pictures, etc.
But when you do leave, grab his phone (laptop too, as appl) and run to the Police. You want to stop him from further sharing your pictures? You're going to need help.