I am representing myself in cicurit court?

I am representing myself in cicurit court on a case involving my ex-husband, and he has attain an attorney and his attorney want me to give her the names of my witness that i had subpeona to come to court and testify on what they know about the case that could help my case. Do I hav't to give my ex-husband attorney the name of my witness and tell her what they are going to say in this matter