Describe how women's and men's fertility is affected by age.

For women aged 19 to 26, they had a 50% chance of getting pregnant on their own fertile day. Women age 35 to 39 had only a 29% chance. However, what’s most interesting here is the impact male age had. For the women age 35 to 39, if the man was five or more years older than the woman, their pregnancy success odds dropped to 15%.

Age affects the fertility of men and women.

Age is the single biggest factor affecting a woman’s chance to conceive and have a healthy baby.

A woman’s fertility starts to reduce in her early 30s, and more so after the age of 35.
The risks of pregnancy complications increase as women age.

Male fertility decline is more subtle, but a man’s age affects the chances of his (female) partner conceiving. Male age over 45 years increases the risk of miscarriage, and the child’s risk of mental health and developmental disorders.

Oh, children are overrated.