My question involves a child custody case from the State of: Washington

My husband and I have only been married 3 short months, though we've been together for 5 years. When I found out I'm pregnant, we got married. We thought it would be best and that our relationship would somehow magically get better now that we were going to be a family. That not be the case. I am 7 months pregnant and will be speaking with a lawyer hopefully soon after the holiday passes. I am planning on moving back to my home state, Wisconsin as soon as possible. My only family out here is my mom and brother, whom I'm estranged from. The rest of my very supportive family and friends are back in Wisconsin. Is it legal for me to move across state lines while I'm pregnant with his child? Is it considered kidnapping? Would I be waiving my rights to child support? What would his rights be as far as trying to gain custody or visitation?