Very - You're in one of the most difficult stages of separation right now, feeling sad, confused and probably very vulnerable. Just think of how far you have come already - you and your ex now live apart, he is not under the same roof as you anymore, and (most importantly) you've taken a massive step to end this hurtful relationship. Well done for coming this far! 
Please do not feel ashamed. In all likelihood, your ex is trying to relieve his sense of guilt by blaming you for the incident which led to your injuries. That makes him feel better, because he knows he has done wrong. That's not your problem, it is his.
AFAIK, if you call 101 to report the incident, there may be no need for you to visit a police station or for someone to visit you at home. Explain that you would just like the incident to be logged, that you want to try and protect your DD from being upset and fear reprisals from your ex.
You can call WA without being obligated to take their advice or leave the family home (though they do give excellent advice, especially in regard to your legal rights!). You can call WA for a chat, and just this will help you to feel better and stronger about this whole thing.
And you can stop contact for the time being at least. If - because of what happened on Thursday - you are concerned about further incidents to yourself (which DD may well witness) or even to your daughter, you have every right to stop contact altogether unless there is a court order already in place (which I'm guessing there isn't?). The only way your ex can make you allow contact is by asking the court for an order to do this, which will work in your favour as you can explain your concerns and ask for contact to me made in a manner which guarantees your safety and DDs well-being.
Seriously ask WA about this, especially if your ex mentions Parental Responsibility and his rights, as this is rather complicated but there is a lot you can do to ensure you and DD remain safe.
Sending hugs
You've been so strong already, but things will eventually get easier.