Wait a bit
I know from experience that it is so hard to wait. We found out that we were pg with our second while I was in CA to attend my brothers wedding. I did want to tell my dad and everyone right away but felt that it was my brothers time. A baby announcement is so BIG. WHat I did was waited until my brother and sister-in-law were driving away in their car, then I told my dad. Funny thing is though that by that time he had so much to drink he did not remember
So, think about you Grandma. What would she want?
Congrats! Oh and by the way I'm about six weeks along too!
mom to THeodore (3), Issac (1), and baby to be