Is OTHER wrong in the post ? POST : TL/DR at the bottom:

Grandmother has been pretty bad off and on for the last 12+ years. Beat breast cancer, had a few heart attacks, even had her memory go for a while there and that even started to come back. She just had to be airlifted to a hospital (they live out in the middle of nowhere) because they believe she was having a pretty severe stroke. I'm definitely not wishing this be the end....it just seems like it could be.

The issue I have now, is that I live 1200 miles away without a car (live in a city, don't need for day to day life), with my now pregnant fiancee. I know my mom would fly me out, but I also need to save all the PTO I have from work for when our baby comes so I can be there for those first few weeks because she is going to need all the help she can get.

The last time I saw my grandmother was in November, that was a really hard time because she could hardly remember anything and was having fits in the nursing home she was in because she would wake up not knowing where she was or thought that the nurses were poisoning her and not letting her leave. She would eventually calm down, but only when family was around to get her back in a lucid state. I felt, after I left that last time, that it would be the last time I saw her alive and kind of came to terms with that on the drive back with my mom to her house. 

As much as I love my grandmother, we never really saw eye to eye through most my life. Instead of being that grandmother figure, she would always more be the disciplinary/judgmental figure while I was growing up. She always questioned every little thing I did, especially in my teenage/early 20s years to the point where it became a task to go see her because I knew I was going to be berated every time. The saving grace being my grandfather is pretty much the perfect example of a grandfather type.  I feel like my mom would understand why I couldn't make it, I just don't know about the rest of the family.

WIBTA?

TLDR: Live a long distance away from grandparents, even though mom would pay for my flight I feel I need to save PTO for the birth of my child. 