Actually, it occurs to me that the phrase 'new baby' is probably a no no. But, how and when did you tell your first child that you were expecting another?
For context, I'm almost 24wks pregnant, DD is 16mths so will be 20mths when DD2 is born. We haven't told her, although we are doing a lot of 'look, there's a baby' and 'oh look, a big sister with a little baby' and 'babies need lots of looking after'. I'm getting increasingly anxious about how she'll cope, so would really welcome hearing about others' experiences.