For newborns, feeding every 2-3 hours on demand is typical for the first 8-9 weeks to establish a healthy milk supply and ensure they regain birth weight. Once the baby has established weight gain and the supply is well-regulated, many parents notice a more predictable rhythm. You do not need to adhere to a strict clock-based schedule at 3 months; continue feeding on demand, but know that as they grow, they will naturally begin to space out their feedings.