My husband agreed to having another child. I removed my BC & now he wants me to get it put back. I am devastated. What would you do?

We argue about it all the time. When the subject comes up he just yells at me. I can't get any further because of the barrier he puts up. I am supposed to go tomorrow to get an IUD. I have had my BC out for over a month. We had sex twice both times for only a moment. I could possibly be preform from the pre. But I don't want to hold my breath. I even have it in writing. His idea.