I'm very impressed Ange!

Jackie, I'd guess a 14 month old would be pretty standard Medium size - but Ange is right to double check measurements (unless you get a one size nappy), because there are kids on the large and small sides of medium - and some brand's idea of 'medium' might be bigger than another's.

And Ange is also right in saying that a baby's shape can play a huge role - River for a long time had a small sized waistline, but a medium sized 'rise' (rise is how long the nappy needs to be for there to be no plumber's crack!). There's actually a size called 'Medium Long' in some nappy brands which accomodates this, but we could have done with 'Small Long'! Instead, we had to find nappies that could do up tight, but had a high enough rise.