When should I tell my daughter I’m pregnant?

Rach

Our nearly 8 year old daughter has longed for a sibling since she was old enough to talk! We found out a few weeks ago and I’m currently around 7 weeks.

We’ve told a couple of close members of family, including my in-laws. We’re supposed to be having a family dinner on Saturday and I can’t help but think it’s going to slip out 😂

Is it unfair to tell her before 12 weeks?