I'm sorry about the miscarriage. wishing you very good luck with this pregnancy.
What about
Star, for a middle name?
I have a young friend who had a boy, her rainbow baby, born after her daughter,
Violet, died. she named her son
Indigo, since that's the colour coming next to violet on the rainbow.
He's a dear little guy, very pleased with his name, and doesn't allow people to call him "Indie". He points to his chest and says, "I'm INDIGO!"