6 week baby bowel movements???

I want to know how often your month old to two month old babies are pooping!?? Bc my baby it's only having a bowel movement every few days! It's Monday and it's been since Wednesday of last week since she's had one! I read that breast fed babies do that, but my mother in law breast fed all three of her boys and they never pooed that irregular. So I'm wondering how it is for your new babies!??