I'm 22 weeks pregnant, depressed and need some advice....?

hi! i'm 22 weeks pregnant with my first and i found out i'm having a boy! my husband has been in jail since november of 2007 and i have been so stressed out. i'm moving out of our apt and moving back in w/ my parents. His grandma calls me 20 times a day just to ask about the lawyer and money situation, she never asks about how the pregnancy is going or how my husband is doing. i want to tell my husband to just deal with his family and leave me out of it. My husband also keeps asking me if i'm sleeping around or if i'm being faithful and that's fine that he asks those ?'s but he asks everyday. i have never cheated on him, he went out on two dates while we were together just because he THOUGHT i was cheating on him. i truly love him and he ?'s my love for him...i just don't know what to do. i'm still here for him and supporting him how could he not see that i love him? he says he is going to change but i'm not confident. what do i do? i don't want my baby growin up ina bad environment.