FirstWeeksYour baby at 48 weeks: birthday logistics
Medically-informed · Sources: CDC · Updated June 2026
One month to the birthday: 12-month checkup booking, the whole-milk transition ahead, and a party that should be smaller than the internet suggests.
What’s happening
The 12-month visit preview
Growth, development review, and a vaccine round (commonly including MMR and others per schedule) — book it now if not on the calendar.
Milk transition ahead
At 12 months, formula typically ends and whole cow's milk can begin (breastfeeding continues as long as you both want). No transition needed before the birthday — just a heads-up.
Party reality check
One-year-olds enjoy: one balloon, cake destruction, a nap on schedule. Keep it short, small and near naptime-free hours — the party is for the adults' memories, and that's fine.
What to do
- Book the 12-month checkup
- Plan the party around sleep, not against it
- Start offering an open cup with water at meals — skill for the milk switch
When to check in
Nothing new to watch — steady as she goes into the birthday month.
This is exactly what FirstWeeks shows you — matched to your baby
Week 48 guidance, skills to watch, and answers that know your baby’s age and log.
