I was struck by this line in an article on IVF:

When will women have children if the clock has stopped ticking? If you have a small daughter, you may be happy to think of her calmly waiting for the right man and the right moment before using the youthful eggs she has wisely stored to make healthy children. But for so many women–and men–there never really is a right time; there is always another promotion to chase, a bigger house to buy, another hurdle to clear. So there’s a question for today’s youngish parents: will your grandchildren ever be born, and if they are, will you still be alive to see them?

This was why Sue and I decide to have kids. There is no good time to have kids. There is never a moment when your life is under control. You just sort of have to have them and muddle through, like everyone else does.