We seem to be seeing a cycle ... she lays, she lays, she doesnt ... she lays, she lays, she doesn't ... I think she's on a 3 day cycle, 2 days of laying and a rest day, then cycle starts again. We'll keep tracking and see if I'm right.
Now if only I can find her a companion ... then hopefully we'll get alternating cycles and still get an egg on that reset day.