The amount that fertility decreases with age is vastly overstated in most popular media. Much of the data for the most commonly quoted statistics about it comes

The amount that fertility decreases with age is vastly overstated in most popular media. Much of the data for the most commonly quoted statistics about it comes from before the medical field discovered antibiotics or hand-washing. In a study of modern women, the decrease in fertility from age 28 to age 37 was determined to be about 4%[1]. There is a sharp decrease in the late 30's, but before that the drop-off is quite small. [1] https://www.theatlantic.com/magazine/archive/2013/07/how-long-can-you-wait-to-have-a-baby/309374/ https://www.theatlantic.com/magazine/archive/2013/07/how-lon...