So sorry to hear your first news, and so glad to hear the other news.
I can relate to what you are going through. We were a bit like that at one point.
After 8 years of marriage our son and daughter-in-law announced that they were to have a baby.
My mother-in-law at 90 had waited so long to hear this news and was over the moon.
She died a few days later.
We did not know which to be first, happy or sad.
My thoughts and prayers are with you.

Patricia