Had to calm self down from cutting

I felt very scared. I got triggered by my husband when he pretended to want to slam his fist in the fridge. He knows that is a trigger for me since my ex boyfriend was abusive towards me physically while pregnant with twins whom I lost at 13 weeks due to blow to my stomach from my ex whom I've broken up with a while ago. Also he knows my ex boyfriend whom I got pregnant with was abusive emotionally, mentally, and financially. He would break things,slam things, call me names while I was pregnant.

My husband is not the type that will hit me but I grew up in the foster care system since I was 4 1/2 years old so I have a hard time trusting anyone. Not only that I've had previous ex boyfriend's who have hurt me so I am afraid of that happening. It is is very hard talking about my triggers bit I'm getting better. We have one biological daughter and my daughter from my ex boyfriend who is not involved my husband took in as his own. I don't want my daughter's seeing me get triggered and wanting to cut because of my triggers.

I used an app called calm harm and it helped me. I don't know what else to do to let my husband know that certain things are a trigger. Please give me some advice.