Feeling stressed and angry

I have 4 kids, a son and 3 daughters with daughter #4 due 6/12. I work part time and I welcome the break to get out of the house. I was taken out of work last week because my job is very physical and I just couldn't do it anymore. Today I'm just exhausted and angry. I've been trying to relax while getting the rest of stuff ready for baby. My girls are being jerks and refusing to sleep anywhere near the same time. Husband has been essentially ignoring me this whole pregnancy even though he wanted it and I wanted my tubes tied. I feel anxious and stressed and just want to relax and sleep. I've been considering just packing a bag and leaving. I'm that stressed out and feel horrible about all this but I have no one to talk too. Is it just hormones? I'm I just stressing about baby coming?