Everything below is written for breastfeeding.
Somewhere around now they cross back over their birth weight — proof the last week of work is paying off.
No measuring. Feed whenever they ask, both sides offered, and let them finish. If it hurts every time, ask for latch help now.
Draft figures for this age, pending clinical review.
Trust the worry. None of this is an overreaction.
If you want the detail
The cord stump finishing its fall, if it has not already. Crying gradually increasing over the coming weeks before it peaks around 6–8 weeks.
Drafted from public sources — see the full source list. This is not medical advice — call your pediatrician with any concern.