Almost 2 weeks ago I found out that one of my Harvest Mice was a female. Luckily my daughter loved them and had the female from me. An update on that is she looks as if she may be pregnant now!!!! They were brought ffom a breeder. I haven't had my 2 gerbils out much before but I have started having them out now for a good run in the hall and lounge. Can you believe that I had them out today and my daughter held them both and found out that they were females instead of males!!! Midge and Fudge are now called Madge and Freda!!!!! They were bought from a Pet Shop. It isn't rocket science to tell the difference between them so why don't Pet Shop/Breeders check properly before letting someone buy them. It really doesn't bother me that they are females they are so cute anyway and getting tamer now they are being handled. Have any of you had this happen to you?