Can things get worse

I just got another call from my brother he just told me more bad news about our Papaw. He told me that Papaw went in for blood work and things are getting even worse now. He just told me that Papaw has days to weeks to live because things arent looking so well for him. Im just really worried about my grammy because her and Papaw have been together for so long now. I really hope that he can make it til the end of this month because that is when I plan on going and visiting him.