Telling Paternal Grandmother

On March 2nd we are telling my mans mom we are expecting if she did not figure it out witch she has not hinted towards yet, we live with her with our 5 year old cause we are a close family, we plan to give her a ultrasound picture and some things I crochet and idk what else yet so far I have made mittens, booties, and a hat and I'm working on a lovey now. Praying she is as excited as we are this well be the 2nd grand baby she can see all the time the others she rarely sees.