depressed and 37 weeks pregnant

My grandfather, the one who raised me, is dying. His lungs are filling up with fluid and they've done all they can do. He screams at night for someone to help him because he can't breath. I see my doctor Tuesday and I'm going to let her no I'm falling into a depression. I just don't no who to turn to. I have 2 other kids and my husband lost his mom the same way. I feel as if I can't turn to him because he isn't sympathetic, "it's life" my heart is shattered. I know your put on earth to die, but to go so miserably is what's breaking my heart. I just needed somewhere to post this to vent.