Any time, hon! More moms who have dealt with custody and stuff will chime in, Sundays tend to be slow on here. It's illegal to hold getting help against someone.
Once you start to feel better, you'll feel a lot more control over things and the tide will turn. He will be revealed as the tiny little person who bullies women and children and you'll all be able to move in a healthy direction away from him.
He won't get it. Pursuing help for depression, anxiety and PTSD does not make you an unfit parent. A lot of people think it will be used negatively against them so they avoid it, but actually doctors and therapists can help bolster your side of things.