How to deal with impending loss? Advice Please!!!

Jaclyn
So I've never lost anyone that was close to me, but my dad who is about to be 78 on June 9 is in hospice care and on his final days. I have not cried very much and it's like so surreal to me and I just don't feel the need to cry, even though I was a total daddy's girl before I had kids (I just relate more to my mom now). My question is- as a mother and a person who is about to experience loss is it normal to not want to cry? How do you deal with loss while being strong for your kids?? Any advice would help greatly! 
My dad and daughters