Unbelievably upset

Okay. So this may be a very long post, sorry in advance. Just need someone to rant to and get this off of my chest.

My husband and I were doing wonderfully well for a while. We share custody of my two older children, 10 and 8years old, with their biological dad and we have a little boy together who is 16 months old. My husband got a new job that paid very well, I was working from home as a nanny and things were good. We decided to start trying for another baby shortly after the littlest was born so they could be close in age like their older siblings. Fast forward to 4 months ago. We decided that August was our last month trying for another because things were getting rocky at my DH'S job. We surprisingly conceived that month and the day after we got the positive test my husband was let go from his job. The company let go over 45 people. My income was nowhere near enough to pay squat. And my husband was having a hard time finding another job. Same time our landlord gives us a 60 day notice to move, he wants the house for his nephew.

Our options were limited. No job, no place to verify employment so we could move...ugh! Luckily my inlaws offered us their place to stay and my husband got a job with a family members company. In the meantime, we are fighting for custody of our two older kids because we are moving over the state line (only 2.5 hours away) and our custody agreement forced us back in court. My ex won temporary custody of the kids till we are in an established home and can revisit the court for a permanent solution. We are allowed to have the kids every other weekend. The problem? My husband's job is commission based off of recruiting placements. So once he finds a person a job, the company has 30 days to pay my husband. We have no money coming in. None. I can't get a job because daycare would cost more than my income and my inlaws are unable to keep our 16 month old. We can't afford anything and our last of our savings was used up when we went to visit my kids on halloween. I now can't even afford gas to see my kids and they are not missing me or returning my calls. (Not their fault, they are kids afterall) They currently live with my ex's parents 90% of the time because my ex refuses to find a job with better hours. So my kids are not even getting raised by their parents anymore, and the grandparents are vocal with their dislike of me. I won't be able to visit my children till Christmas and I'm heartbroken. My own mother and sister have volunteer to help my ex when they have been out of the picture for pretty much the kids entire lives. I'm doing my best to keep it together and not be soo upset, but I'm failing. I don't want to do anything to harm the baby I'm carrying and I've heard that these emotions are toxic for him/her, but I'm at a loss at what to do. My inlaws cannot help financially, they are on a fixed income and my mother has refused to send me gas money but is willing to jump through hoops to help my ex. Sigh.

Sorry. I'm just needing this off of my chest. Thank you for listening.