I wrote in the Father's Day cards "Love from Josh, Amanda and Baby Medley." They were surprised and very happy for us. Dh's Dad did tear up a little once and I know it's because he wants to share it with my MIL who passed away in May and can't.
This has also been hard on my DH because he would love to tell his mum and I know she would've been ecstatic.
I believe that she has sent us this baby as our little Tic Tac is due almost a year to the day since she passed away and she wanted to bring us joy instead of sorrow upon the anniversary of her death. I'm sure that wherever she is, she knows about our Tic Tac and is happy.