Oo, totally normal yan, mama! At 8 days old, babies on breastmilk usually poop a lot, like multiple times a day, sometimes kahit sa bawat feeding pa lang, so don't worry. A few of us moms noticed na ang poops nila were yellowish and seedy-looking, which is actually a good sign na well-fed ang baby from breastmilk. But if ever makikita mo na very watery talaga or may mucus/blood, or kung parang may problema sa baby, best to check with your pedia just to be sure everything's on track, okay?