What do I do...

Alittle background me and my husband have two kids and I’m currently pregnant with our 3rd. After me and my husband got married we bought a small little 2 bedroom home that was just perfect for us and we loved it! When I was pregnant with our first we decided it would be better for our family for me to be a stay at home mom for our family. So I quit my job once the baby came. Fast forward and few years and a second baby. My husband got promoted to be the general manager for his Company and was super excited! We are at a point where my husband wanted to upgrade our home. So we decide to sale our house and we find what we feel is the prefect new home for our growing family. One night ( like a week after we get our new home) while we are fighting about stupid stuff my husband breaks down and tells me he hates his job and he wants to quit. So after a lot of talking we decide he’ll quit go back to school and work “cable” in the meantime because it will be a lot less stressful and demanding. Thats what he needed to do to be happy. Well it’s been serval months now... he still complains every day and tells me how much he hates his job. He hasn’t even made the effort to start school and we officially out of saving our credit card are maxed out and his pay checks aren’t even enough to cover Mortgage. I’ve never been so stressed in my life. I’ve started working nights to help when I can. I’m just at a lose. I’m scared. I’m sad. I feel let down. He wanted the house, he wanted to quit his job. I’ve supported him with both and I feel like he’s just not taking care of our family the way he should be. Sorry for the long post I just need to get it off my chest.