Hello. I read the TOS and I hope this is alright to post being new and all. (Some forums scream at you about starting new threads but I don't see one like this in here yet).
I have a 3 year old single female cockatiel and she laid an egg about three days ago at the bottom of her cage. She's not sitting on it, just sitting next to it I guess watching it. She almost looked as if she would lay another one but she hasn't yet. I gave her plenty of food and put vitamins in her water because I read that laying eggs takes a lot out of her system. Plus, I have to go pick up some calcium drops from the vet tonight.
Does she need a nest of some sort? I thought putting a nesting box in would encourage her to lay more, so I didn't put one in. Someone also told me to keep her warm. Is there anything else I should do to keep her comfy during all this? I'm very worried about egg-bind.
Any help is much appreciated.

Thank you.