Where can I find family court forms for couples who were never married.

My ex and I have a three year old son. Our case is in Brown County, WI. I currently reside in Kenosha county, WI. She has taken me to court to obtain sole custody and wishes to terminate my parental rights. I used to see my son every weekend. After entering into a new relationship, my parenting time became less and less. Recently she told me she will not allow me to see our son until the courts decide. I found under WI state statute 767.225 I can request a temporary placement order during pendancey. Unfortunately, all of the forms state "RE in the marriage of." we were never married, but were engaged for some time before she broke off the engagement do to already having another partner. Where might I find simular forms for unmarried persons who are going through a custody disagreement? Do such forms exsist in WI? Can I just use the ones meant for divorce/legal seperation? Trying my best to be an active part of my childs life.