I have two biological daughters aged 16 and 14
A step-daughter aged 13 (who I never see)
and a 16 year-old adopted son who lives with us.

And of course another girl on the way now!

We are discussing at the moment whether this "new" addition will be the last one - I am of the opinion that, given the age gap, this child will essentially grow up as an "only child" so I would consider having another one after this - but only if it happens almost immediately, as I would like them to be very close in age. Otherwise that's all for me!!

My other consideration is schooling costs - We will have at least two sets of university fees to pay right at the time when this little one starts school - and she WILL attend private school, so we are already trying to save for those expenses