What happens when husband and wife agree to divorce and husband says the wife will get nothing?

My husband and I have been married almost 16 years. We have decided to divorce, but he claims I am entitled only to the things I purchased or inherited and my IRAs and investments. He is retired and receiving a pension, the house is in his name but has a reverse mortgage, and I have been working as an ed tech for RSU 13 since we were married. I have been making between 10 and 15K per year. I have paid the electric, phone/internet bills and also helped with groceries until about 3 years ago when he chose to take over the utilities. I still assist with the household items/groceries. We both have children from previous marriages that are all over 18 and no longer live with us. He helped out with my son and daughter moneywise, but otherwise had nothing to do with them. Maybe I'm not entitled to anything, but wanted a consult to make sure.