Your situation seems like a really difficult one. Have you considered asking your husband to work a bit more? I know you don't want to inconvenience him, but it sounds as if you might have to talk to him about how you're feeling and ask for help from him. I'm sure that once he understands what you're going through, he'll be willing to help you. It also sounds like you may need to take a bit of time for yourself after work to relax and unwind, doing this before bed might help you sleep. I've been through a very similar situation, and you can pm me if you need someone to talk to about this.