No, she will be happier with More----not to many-----if she is a average size hen about a dozen is a good number----if her nest is not bowl shaped some---lift her out---I hold mine under my arm and fix her nest so the eggs will not roll out---then place her back on her new eggs. Good LuckIt's been a few days almost a week now I think. I'm pretty sure all the eggs she's sitting on aren't gonna hatch so I was planning on just replacing all of them. Also if I replaced more than she started with would that be a problem?