Coping with new diagnosis

My nan was recently sent to hospital for sepsis and during this she was diagnosed with acute myeloid leukaemia. She was given the ultimatum of no treatment and only having up to 3 months to live or have treatment but only having 6 to 12 months to live. When asking the nurses has anyone exceeded 12 months, they always say no.

My nan means the absolute world to me and I'm really struggling with the news. I'm trying my best to go to work but I find myself breaking down and I don't know what to do , especially as my work place isn't entirely supportive. I'm currently 22 weeks pregnant and can't risk losing out on money but I feel guilty going to work when I know I could be visiting my nan or being available when she needs me. I go to sleep on the verge of tears or waking up in the night streaming. I spoke with my husband but he's recently gone through a loss with his grandparents and I feel bad for bringing him down with me. I don't know what to do anymore , I really struggle...