good question, but a hard one to answer
i know women in their upper 40's who have been trying for years to have children naturally, but it's not happening.
now they are thinking about having children artificially. what do you say to them. don't have children because medically you have passed child bearing age (13-45)?
then there is the other side. i know women who conceived naturally at age 44, but when the child reached school age, other children teased them and called their mothers names: such as, your mom looks like a grand mother, etc.
at the same time older moms lack the energy to participate in school, or other sporting activities with their children.
i would say, women who are of age and still want to conceive , should speak to their doctor and research on all the pros and cons.