We bought our pram at about 6 months and as it was our first bub and we were excited, we had it assembled from then too.....With the car seat, Shane was so worried that they'd bring out a new model if we bought it to soon, we got it in the last week before the bub arrived and it was intsalled after he was born by the RTA guy stationed at the hospital on the day we took him home. This time around we'll do the same withe car seat, only shane knows what he's doing now installing it.