Working in Fast Food in do's and dont's while 24 weeks pregnant. ?

Okay so im 15 years old, and im 24 weeks pregnant before you call me a whore I didn't ask to get pregnant or to even have sex my boyfriend forced me to have sex with him, and then last Saturday he was killed in a major car wreak. I told my parents when I was 22 weeks and they still wont talk to me. I also work at Back Yard Burger and I did tell one of my managers. Im really little still with just a 5 lb gain my whole pregnancy so what can I can and can't do to make sure my baby is safe at work. Sorry about the whole long thing I just need your help since my parents wont help me. Thank you!