maternity leave

Sarah • 30, SO and I have 8 1/2yr old boy, 6yr old girl and 4yr old boy and expecting another baby 🥰

So i am currently a single mom. I have 2 kids already and im so afraid of going on maternity leave. My son is on SSI for epilepsy so that is paying my rent. I work at subway fulltime and that is paying for food, diapers, and other bills like electric and phone ect. I dont get foodstamps because my sons ssi money n my check add to $1800 a month. I dont make alot ither just enough to get by and i also have no car so i spend alot of money on bus. Is there any help out there for moms who go on maternity leave? I'm so scared to even go on maternity leave and im soo stressed out i dont know what to do.