Okay, this morning I spent a few minutes looking for "foal gestational development blogs" and I found these two adorable blogs devoted to the experience of "foal watch!" -- Waiting for Baby!!
Check them out, they are cute. I especially like the one where the lady checks her mare constantly and the mare pins her ears each time and then one night, after a restless sleep at the barn, the lady wakes up and peeks in the stall and there's two sets of pinned ears -- mama and baby and baby already learning from mama to be ungrateful to grandma! I can't wait to see Hailee Jr.!
http://thelazyf.homestead.com/foalwatch.html
or
http://www.roads-end-farm.net/farm/Mares/Sophie/SophieWatch2003.htm