Newborn constipation

jessssss • mama to a rainbow baby 🌈

My newborn is constipated (straining and passed a hard stool this morning). She’s 3 weeks old and the pedi said we could give her up to 1oz water throughout the day to help but I’ve seen contradicting stuff about this and now I’m scared. Does anyone have any experience with newborn constipation? She’s formula fed.