hi doctor, my baby has 2 week, I feed her breast milk but, I don't have enough milk, so I feed sometimes formula milk, loctogen,a day two times her stool going, due to drink formula or normally stool is going yellowish color.

A. hi dear In the first few weeks of life, breastfeeding should be "on demand" (when your baby is hungry), which is about every 1-1/2 to 3 hours. As newborns get older, they'll nurse less often, and may have a more predictable schedule. Some might feed every 90 minutes, whereas others might go 2–3 hours between feedings.