Interesting development. One of my hens has gone broody... I'm thinking of giving her 3 eggs from the incubator. From my friend's batch, since I don't want to risk it with my fragile (and expensive) shipped eggs. I called her and she gave me the okay, got very excited for us and the kids in particular that they'll see a mama with babies for the first time, and said we can keep the chicks if they hatch. So I'll watch the hen today and if she's still sitting by afternoon, I'll take the infertile eggs she's on right now and swap them for 3 from the incubator. How exciting! I wanted a mama hen at some point, just didn't think it would be so soon. This is one of my Barnevelders, who is about a year old and only started laying 3 months ago. I have Orpingtons of the same age, too, and expected them to go first. Who knew.
This is the third day that the broody has been sitting. The first night, I moved her back to the roost, but she went back in at first light. The second night I was going to move her again, but my husband said why don't you give her some eggs from the incubator

Didin't expect him to be the enabler, haha. So I let her sleep in the nest the second night (last night). She's still there. I put food and water for her in the coop.
The broody has picked the perfect time. I wanted the mama hen experience at some point anyway, but right now I have eggs to give her, I have a setup to take them back if she quits at any stage (incubating or post-hatch) and put them back with the others, and, most importantly, I'm still working from home all day thanks to COVID so I can keep a close eye on things. I'm very happy! Let's just hope she sticks with it now!