Beautiful!
I am so sorry for your loss. I remember the first time my older sister was expecting a girl a few years ago, and she miscarried. It was a heavy loss for her and it also weighed deeply on my soul. Now she has two daughters and I am very happy to be their uncle.
Anyways, this song is very simple, but it makes me feel very peaceful deep on the inside. I could almost fall asleep to this, but not before shedding a tear or two. I am sure your son would have as well. This is a very thoughtful, kind lullaby you have written. Don't stop doing what you love. 5/5, 10/10