Can they take my Medicaid away?

I'm 19 weeks along in my pregnancy and I have an interview tomorrow. If I get the job, will they count my boyfriends income along with my income for the medicaid since we live together? I also get WIC and I know they will take that away because I'm barely eligible for it now.. I'm not sure of the Income guidelines but I know they are rather low. Do you guys know if my boyfriend income counts or is just mine right now?