Let me know in the comments if you find wrong sentences among  in this diary.

今日我が家に孫が来ます。
Granddaughter is coming to my house today.

今月は孫娘の誕生月なのでケーキを作りました。
Since  it is the birth month of granddaughter,my wife made ​​a cake.

孫はアンパンマンが大好きなのでアンパンマンのケーキを作って待ってます。
Grandson loves Anpanman. So my wife made ​​a cake of Anpanman. And we are waiting for her.