What to do

My baby will be 6 months this week and idk what to do my unborn baby is depressed because the way my baby father treats us he does nothing for us yet texts everyday to check on me but says he wants proof when he knows what he did multiple times for this baby to be convinced and my doc office doesn't mail test results unless negative they call idk what to do anymore and its getting to the point where i feel like mi baby is losing weight and stressing it feels like my baby is slowly dieing inside of me and it breaks me heart for my baby to feel like it doesn't want to be here and im running out of options on what to do to save my baby can someone please help me !!!