Source: Not sure, but not me.
If you waited until you felt ready, the kid would never be born. Perfectly ready isn’t an option.
You can buy all the stuff and read all the books and build up the nursery. And at the very end there is nothing she wants more than to get the baby out.
But that last mile of feeling ready? It may never arrive.
And the wisdom applies month after month. Each phase is another chance to not feel ready for {toddler feelings, potty training, first days of school, driving, dating, graduation, college, careers, weddings}.
But you are.
Gratefully Dad 