Your courage in posting here is commendable especially with a husband who is still a believing JW.
You ask, "What else is there to believe in?" This is a reflection of the WT saying of "Where will we go away to?" To the latter question, there is a whole wide world to explore. To the former question, you don't have to believe in anything at least for the moment. Take the time to explore new ideas without WT glasses. Open your mind and decide for yourself. It's a scary journey for sure but it will be your journey.
Much good advice has already been given. Give heavy consideration to what nugget said. Think deeply about how the isolation of being raised in a closed cult will affect your children, how it robs them of normal social interaction. They need to make their own mistakes without the threat of disfellowshipping hanging over their heads. And, yes, they will make them. Be there to pick them up, not kick them out. My husband, TotallyADD, was raised a JW and we raised our two boys in the cult.
Do as much research as you can. There is much on the internet if you don't feel you can get your hands on a book. You also have a lot of support here as there is someone here who has experienced each aspect of what you have been through. If you would be more comfortable you can post in the members only section or pm any one of us. Just let us know by posting, for example, "Reopened Mind you have a pm".
Relax and take your time. The world is not going to end anytime soon.