Opinions??

Ok so I'm 19 my bf got me pregnant he works he makes $600 weekly. I can't work because my pregnancy won't allow me im always nauseous throwing up. My mom keeps telling me my bf needs to give me money for bills/food/ect she's just asking for $100 monthly  idk what to say I don't want to ask him im embarrassed do you think it's his job to be giving me money if the kid isn't here yet??