In desperate need of help

I'm extremely worried of what my partner and I are going to do financially. I was working part time at a pet store while in school, and he's part time in the military (it slows down after the summer). We were great with money but it seems like we ran out faster than I thought possible. Since where I work doesn't guarantee hours, I've gone from working 20 hours a week to 8. He has been cut down as well, and with travel, it seems like he barely earns anything anymore. I'm already 18 weeks, and no one in the family (either side) want to help because my partner and I are not married so this baby is shameful to them. My mother in law refuses to have a baby shower before its born despite my begging and pleading. Idk what to do and I'm really scared of falling behind on any payments...or worse... 😭😭