Knowing your babies adjusted age is useful and many health professionals will use it when plotting on weight and growth charts. It can also have a knock effect to the babies development, not in a bad way, just that it may take them a little longer to reach a milestone than a baby born at full term. There is no rule as to when a premature baby will reach a milestone but as a general rule of thumb I say this…If a term baby would start smiling between 6-8 weeks I would expect a baby born 4 weeks prematurely to smile anywhere between 6 weeks actual age, 6 weeks from their birth, and 12 weeks actual age which would be 8 weeks adjusted.
Some premature babies do his developmental milestones at the same time as term babies and often one twin will doing something before it’s sibling. This is all ok and perfectly normal but if you are at all concerned about either of your babies development it is always best to get them checked by a medical professional.
How to work out your babies adjusted age –
ACTUAL AGE (NUMBER OF WEEKS SINCE DELIVERY) – NUMBER OF WEEKS BORN BEFORE DUE DATE = ADJUSTED AGE

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