FirstWeeksYour baby at 42 weeks: separation, round two
Medically-informed · Sources: CDC · Updated June 2026
A second wave of separation feelings commonly peaks near 10 months: daycare drop-offs and bedtime doors get dramatic again.
What’s happening
Why it's back
Memory and attachment are stronger; object permanence now applies to YOU. Leaving hurts precisely because the bond built correctly.
The goodbye formula
Short, warm, predictable: same phrase, kiss, leave. Lingering and sneaking both commonly make it worse — the ritual is the reassurance.
Transitional objects
A small lovey (for awake comfort; the crib stays bare for sleep under 12 months) commonly starts helping around now.
What to do
- Build a 10-second goodbye ritual and repeat it exactly
- Leave baby with sitters awake, never mid-sleep
- Play peek-a-boo and short hide-and-seek — separation practice disguised as fun
When to check in
Distress that never settles after you leave (not just at the door) — worth a conversation with your pediatrician or caregiver.
This is exactly what FirstWeeks shows you — matched to your baby
Week 42 guidance, skills to watch, and answers that know your baby’s age and log.
