I would wait until after you have the baby to sort out a separation/divorce. Do you have enough room in your house to make your own space? It will be stressful enough for you closing down your business and being pregnant/having the baby to not throw getting him out of the house into the mix. I would make sure you have income/joint credit/banking, etc. so when the time comes you have some leverage? Just wanting something (to stay home with the children) cannot make it happen. Even married one cannot force another person to do what we want. Work on an equitable plan that gives him something he may want so he has a reason to want to leave?