Is this a sign of rainbow baby after still birth

Lost my son 3 weeks ago.. stillbirth at 39 weeks.. a week later I was walking outside to go to my sons wake I'm in Chicago so the weather has been shitty but that day it was sunny and beautiful.. the snow melted and there was a rainbow in the puddle I looked around I couldn't find it in the sky but it was a rainbow.. am I crazy to think this... do you think it's a sign that will have our rainbow baby soon? I had a feeling idk how to explain it it wasn't a gut but it was there for a reason..