I do hope you stop by again and see the link to the pattern you asked about that I used for my Jacob's Ladder quilt. I would have emailed you, but your email settings are set to private.
The pattern I used to make my blocks were found here:
In the directions, she has you cut the squares to 4 ⅞" to make the half square triangles. I round my squares up and trim the half square triangles down to size to make them perfect. Well, as perfect as I can. =)
A pink, white and gray baby quilt will be lovely!
Thanks for stopping by and I hope to see you again sometime. =)