I'm Grandma, or Grandermar as mispronounced by my eldest sometime last year, I think, and it's stuck.
Others are nanny, tho one is quite interfering and is now called by her first name by the eldest ones (13 & almost 12).
In some instances its whatever the child manages to pronounce, which we all know could be absolutely anything!
In some countries it's mumu or momo (mum's mum,mother's mother) etc!
I was in my mid 40s when I became a grandmother, and have never taken to being nanny. Nanna would've been accepted, but they all call me Grandma, or Grandermar, so I'm happy.
Maybe they could call you Reba, or something else from your name!
Congratulations, BTW, you're going to have so much fun!!
Re painting metal bistro garden set
SNP and Greens end coalition deal