Ditto - the oldest I knew is a couple who were 47 and 48 when they had their youngest.
Means they'll be around 70 before he's even thinking about leaving home.
I knew a couple, second marriage, but already had a child when she was 49 to this guy (she also had 3 children in their late 20's from the first marriage) give birth at 53, to triplets - self inflicted through IVF .
This couple made all the national magazines at the time, and I even saw them in one of those 'that's life' mags (in a waiting room incase anyone thinks I buy them ) not long ago.
They had their 3 around the same time I had my single, unsettled, last child, and I tell ya, whenever I had to get up many times a night and felt overwhelmed, I thought of them and instantly felt better.