I think dv is protected by law in the equality act 2010. If I'm right, that means they cant add it to the current situ. But I could be wrong. You can look at gov.uk and it will tell you.
Also, acas have an online facility where you can tell them whats happened and they tell you your rights.
Finally, i thought it was in law about parental leave? That everyone with young children have a right to it?
f you resign, then it will affect any benefit you may claim after. If they sack you, your reasons will be good cause. So whilst your panic makes you want to run, try and stand fast.
And no, staying in a bad situ and being a victim of dv is not better than this.
This is a step towards where you want to be and each step helps you get stronger.
And every person who sees it just from the employers point of view is not seeing how they are making you feel worse. Don't let them make you feel like that. Empower yourself with knowledge of your rights.
Don't take it second hand but go look it up and get the facts.
Most of all, i want to say how bloody brave you are and well done.
Your children are more important than any job. You can look at other options once you sort this but whether you have a child minder or nursery, neither are going to take an ill child. And why should they?
My lifeline is a close friend and we exchange favours. She helps me with situations such as this and i do other stuff. Win win.
Good luck, you have been through the mill. It shows your strength. You CAN do this!