Should I be so upset?

I bet he's still in shock and/or exhausted so do give him time. He did let you know and I'm sure he'll catch up later.

Doodle, thank you for that. I just needed a different take on things instead of reacting emotionally as I tend to do. Thank you for the congratulations too.

When you say he posted the news on your group family What’s app I’m assuming that he knew you were part of the family group and would therefore get the message. When my first grandchild was born (pre mobile phones) our son phoned very quickly and gave us the news then we didn’t hear from him for ages. There is a lot going on when a baby is born and I expect he is taking care of his wife and new child. Also it may be that the phone signal in the ward is not good and he would have to go outside to phone you. Perhaps he is unwilling or unable to leave his wife or child at the moment. If I were you I would just be really happy to have a new grandchild and wait until your son has the chance to phone with more details. Congrats you the way. ?