Finally! Silly things just never get pregnant. About the breeding of Cookie, she may be going through rattie menopause since you say she's quite large and heavy. She may be pregnant, but being so big boned, it might take the arrival of babies to signal that she was indeed pregnant, LoL.

I wouldn't worry about breeding her to Nova, he's a black hooded, so definately no worries there. Now if you bred her to a blazed husky or a black eyed white male, then you may have some issues. But seeing as a pet store would probably never have a BEW boy, it should be fine

Glad you're finally gettin' some beebees!