On december 24, I took in 4 rabbits. 2 females & 2 males. I noticed almost right away that one of the females would growl if one of them males would start chasing her around. I've read that growling can mean the rabbit is pregnant. Now she'll growl at me if I try to grab her. Is she just ''mean'' or is she pregnant? (She was living with one of the males before we got her. It's been 18days and no babies, but I know it could take another 2weeks before she kindles.) Any ideas would be greatly appreciated! Thanks!