You must be in the Guinnes Book for being the youngest mother ??? Wow.
At any rate, if you are unhappy in your marriage, you should find out what resources are out there for you. If you want to leave and take the kids, plan it all out first (thats a lot of children to uproot). OR suggest a separation and ask him to move out ? If he won't do that and you want out, you need to start planning now. There is help out there.