Ellie, I am so sorry. I can't find it online, but several years ago in Mothering there was a short article called "Spirit Baby" by Peggy Vincent (July/August 2002 issue). It's from Vincent's book "Baby Catcher." IRL, her 12-year old son told her the story of Spirit Babies when she miscarried. I'm glad I still have the issue so I can type out the crux of it:
"...every woman has a circle of babies that goes around and around above her head, than those are all the possible babies she could have in her whole life. Every month, one of those babies is frist in line. If she gets pregnant, then that's the baby that's born. If she doesn't get pregnant, the baby goes back into the circle and keeps going around with all the others. If she gets pregnant but something bad happens before the baby's born...now listen, Mom, because here's the really cool part. It goes back to the circle, but it becomes a Spirit Baby, and all the other babies give it cuts. Each month, it's always first in line....So you just have to get pregnant again, and you'll have the same Spirit Baby. If you don't though, then the baby circle will just beam that little Spirit Baby over to some other woman's circle, and it'll be first in line for her....Mom, remember that baby you lost before I was born? Well that was me. Really. I've always known I was a Spirit Baby. I mean, I know what I'm talking about here, Mom."
I thought the story was so sweet and so cool coming from a 12-year old boy, that I've never forgotten it.
Be sure to nurture yourself extra specially. Take care.

Carol