Hi Judith, I've been following your lovely story. So you've bought her a 'sister', I hope the white one that you bought, Wilma, isn't pregnant, cos they start mating very early, and she may have been in with male or males before you got her, even before the petshop got her in.I can't remember the gestation period of tame mice, but I would keep an eye on her for a while.,...Posie...
