Dear 100 Hour Board,
I'm trying to find a blog I used to read. They were an LDS family and they had a baby that they knew wouldn't live for very long. They even had pictures of the baby. It died maybe two days later or something? And then they also had another kid? And the mom did graphic design? Does anyone know what blog I'm talking about?
-My Name Here
Dear Your Name,
I don't know if this is the blog you're looking for, but it matches much of the description you gave: hillaries.
As a content note to readers, the blog does have pictures of the deceased baby that some people may find upsetting, so keep that in mind when deciding whether or not to follow the link.