Your baby’s timeline
A developmental timeline tuned to your baby. Enter a birth date and see what to expect this week and in the coming months — with gentle pointers on when specialist input might help. When you're done, take it with you: the whole first 18 months as reminders in your own calendar.
Important information
This timeline provides general developmental information only and is not medical advice. Every baby develops at their own pace.
In Australia, your GP and Maternal & Child Health Nurse provide routine developmental checks. Paediatricians provide specialist care when additional support is needed.
Personalise your timeline
Enter your baby's details to see relevant milestones — and to take them with you as calendar reminders.
Optional: name and birth weight
Everything you enter here — birth date, name, sex, birth weight — is stored locally on your device only and is not transmitted to any servers. 'Change details / start over' clears it.
Change of details, or starting over?
Calendar apps can't undo an import, which is why the download steps say to create a calendar just for your baby first — then removing the whole series is one action, not fifteen.
- Google Calendar: Settings → select your baby’s calendar → Remove calendar → Delete. Every event goes at once.
- Apple Calendar: press and hold (or right-click) the baby’s calendar → Delete Calendar.
- Outlook: right-click the calendar folder you imported into → Delete.
Then use Change details / start over in the tool above, re-enter, and import the fresh file — after deleting the old calendar, so corrected dates never mix with the old ones. If the events ended up in your main calendar instead, search your baby’s name there and delete the matches.
Twins? One baby at a time: enter, download, start over, repeat — each gets their own named calendar.
Milestone ranges follow Raising Children Network and RCH developmental guidance, and line up with the green book’s development stages on the Service Victoria Parent Portal; babies vary, and corrected age applies for babies born early. Typical-weight figures come from the WHO Child Growth Standards (2006). General information only — if you're concerned about your baby's development, talk to your MCH nurse, GP or paediatrician. Last reviewed 25 August 2026.