Pregnancy and Losing Loved Ones

I'm hoping that sharing this post will help me not feel so alone. I'm 24 weeks pregnanct and 2 months ago, my mother-in-law died suddenly. I loved her very much and losing her was absolutely devastating. Now, my grandmother who is my only remaining grandparent, is starting to give up on her battle with cancer. She put herself in a nursing home a month ago and is gradually getting weaker and weaker. Her mind is also going. I'm feeling extremely anxious because I don't know if she will be here when my daughter is born. I'm trying to prepare myself for losing her but it's so hard. I just feel like what is supposed to be a happy time is turning into heartbreak. To top it off, my baby sister who I'm close to is moving 12 hours away in two months. I'm just surrounded by loss and it's such a different feeling than when I was pregnant with my son. I really want to relax and enjoy this pregnancy but I'm feeling so anxious, stressed, emotional, and heartbroken. Anyways, thanks for reading. If anyone has any advice or can relate, please comment.