I would definitely set it or wait and see if your hen lays a couple of more and set them together.@ronott1 My tom turkey has been gone for 2 weeks 6 days. I got a turkey egg today. Any chance it could be fertile? And good links to incubating turkey eggs?
Here is a link to the 2014 Cinco De Mayo Hatchathon. It started when a group hatching for the 2012 Easter Hatchalong wanted to try setting turkey eggs and so a bunch of us did. The first post has some links you might find helpful.
https://www.backyardchickens.com/t/...e-mayo-turkey-hatch-athon-all-poultry-welcome