: Most babies will have regained their birth weight and begun to grow in length; for example, some infants may reach the 90th percentile in height/weight by this time.

By the one-month mark, many physical symptoms like heavy bleeding have often subsided, but your body is still recovering. Optimizing Postpartum Care - ACOG

At one month, your baby is beginning to engage more with their surroundings through sight and sound.

: Feeding remains frequent, occurring every 2 to 3 hours. If you are exclusively formula feeding, babies typically consume between 2 to 4 oz per feeding.

: You may notice your baby moving through distinct states, from "quiet alert" (watching and listening) to "active sleep" (REM sleep where they might twitch or even smile). Postpartum Recovery for Mothers

: Tummy time becomes a priority, with some pediatricians recommending aiming for up to 30 minutes a day to build head and neck strength.