I'm so sorry he assaulted you. He will do it again. They always do.
I understand you're worried about the baby, but I'm worried about you.
Abuse (coercive control) that may have gone unnoticed before pregnancy often escalates once pregnant because the man thinks you're trapped and unable to leave no matter how bad he is.
You're not trapped. There are people who will help you. You can absolutely manage without him. Your life can be great without him, even though I know that isn't what you wanted for yourself. But this changes things.
It might feel like it but this is not the end of your future, only the end of your dreams with this man. You can be happy on the other side of this.
This is domestic violence and the police take it seriously. I know you may be scared to call them but they would want the opportunity to protect you and help you. If you are ever in immediate danger like that again you can call 999, it's what they are there for. You can also call 101 now.
Women's Aid can help you make safe plans either to leave, to get him to leave, or to keep yourself safe while you make arrangements. They can offer support too. 0808 2000 247
Freedom Programme can help you understand his behaviour, why he's doing this, how it's affecting you, and why you can't change him. They can show you how life would be once you are free of his control and the fear of violence you will always have now. It's confidential and you don't have to talk about your life, you can just listen to the info they have for you. Www.freedomprogramme.co.uk
I know you probably don't want to leave, nobody really wants that when they're in this situation, but unfortunately sometimes we have to go through the difficult, scary thing to get ourselves to safer, happier times.
Acknowledging within yourself that you need to work towards leaving doesn't mean you have to march out the front door right this second unless you're in danger, it just means you start mentally and practically preparing.
In a healthy relationship you would be respected, listened to, supported, nurtured and would never have been threatened with let alone subjected to violence.
If you stay, he will use the threat of violence - because now you know he'll do it - to control you and make your life progressively harder, lonelier and more miserable.
I'm so sorry this has happened to you.
Please stay safe. Don't tell him you want to leave because he may become violent again to stop you. Keep you cards to your chest and call for help straight away if you need it.