willowbough

postnatal · 8 min read

The fourth trimester: a field guide

By Sofia Almeida · Updated August 2026

Weeks 1–3: the cocoon

Stay horizontal as much as you can. The old rule holds: one week in bed, one week on the bed, one week around the bed. Feed on demand, sleep when the baby sleeps (yes, really — the washing can wait), and let visitors earn their entry with a meal in their hands and a short stay. Your only jobs are milk, rest and bonding.

Weeks 4–8: finding rhythm

Somewhere around week five the fog lifts slightly and patterns appear — a longer stretch of night sleep here, a predictable fussy hour there. This is the season to leave the house daily, even briefly: daylight steadies both your moods. Keep one nap sacred, keep expectations low, and note feeding patterns for a few days if latch or supply worries you — data calms better than midnight scrolling.

Weeks 9–12: emergence

The baby smiles socially now, and many mothers feel themselves returning. Ease back into the world at your own speed: a coffee with a friend, a postnatal check you actually attend, a walk that gets longer each week. If sadness persists beyond two weeks or anxiety spikes, tell your GP or health visitor promptly — support works, and asking is strength.

“Rest is not a reward for coping. Rest is how you cope.”