Any help to get us out of financial hell? How can hubby make money consistently if he goes back to school?

I’m married to a man who is deeply in love with me and our children. Though we have lots of love, our finances are terrible. My husband is one of those men who will do anything legal to suport his family so that I can stay home with our babies (2yr old and baby #2 due any day now). Yet DH has lost job after job where he tries so hard to do his best. He would like to go back to school, but he can’t because we have bills (mortgage, car note, etc) ANd this is what really gets me..ALL of our bills come to less than 2k per month. That’s all, an yet we struggle so much trying to make ends meet. We are behind on our mortgage and have $5 in our checking and are down to $170 per wk from UPS now that unemployment has ran out and his lawn biz has ran its course. When DH lost his job this year, he put the lawn mower in our car and started cutting yards going door-to-door. It became a booming biz, but then there was no rain and so grass just wasn’t growing so biz slowed down to a halt while he still works pt at UPS for free benefits. He’s been out knocking doors but only to get no’s. He’s been tryin to get anotha pt job to make ends meet, but to no avail. He’s delvered phone books, cleaned up, call centers, you name it. But it seems he can’t keep a job that will pay our bills ontime. I was going back to wrk but got preg with our 2nd child due any day now. I want to help but I’m about to have a baby. We’re a very close knit family but we are very frustrated financially as we don’t know what else to do to make CONSISTENT money. We tried starting a biz, but we need money to continue it tho we have all of the equipment (screen printing). Is there anyway dh can get money to support our family while going to school (he’s an artst)? UPS will pay for it but we need money coming in along with UPS if he goes back to school! We have dreams we want to persue like our biz and artistic talents but it seems impossible to do that with little ones. I will start a pt online job in about 6 months from now but we need money yesterday! Any ideas about dh gettin paid while in school, our biz we tried to start in screen printing or something consistent, woud be a great HELP!!!
Just for the record, I’m not stting bk just being served. I’m a full time Mom in a hi risk pregnancy. It was advised that I do not wrk during this pregnancy. When I got preg, my DH had a good job he was doin well at, but he was fired this year when things got slow for not meetin quota. He went out cuttin yards when everywhere he applied would not call him bk (he had to do sumthin). The thing is job security. That would be nice while our babies are growin up. We dont mind puttin things on hold while we raise a family, but UPS is a stable job since he’s in the union, he just needs something else to go along with it to make ends meet. We have full free benefits at UPS for the entire family we’re not giving that up, we just need 1 more job to meet 2k per mo NOW. I can wrk an make more money wrking pt but i go 2wrk in 6 mos after baby born, not before. so im jus askin for advice on sumthin 2 do now. So dont judge, we didnt wak up 1da thinkin he’d no longer have a job while im preg.