Help with housebreaking my gsd pup?

my pup is 8 weeks and weve had her for almost a week now. she will NOT go outside at all. we take her out every hour or two, but all she does is sit at our feet. when she goes in the house, we dont catch her but we show it to her and tell her bad, but when we do catch her, we say bad girl and bring her out right away. i was wondering if she'll grow out of this if we keep at it or if im doing something wrong.