The term fertility is commonly defined in reference to one's ability to reproduce.
In demographics the term 'fertility rate' is used to describe the number of children mating pairs actually have - regardless of their ability to conceive or lack thereof.
ie. When we say that country X has a lower fertility rate than country Y we usually don't mean that people in country X are less able to have children - usually we mean that people in country X choose to have less children.
Can we then - use the term fertility to describe an individual's choice about whether they have children. The common usage would be in discussions of birth control and abortion.
A woman's right to abortion is not just about her autonomy to her body, but the right for her to control her fertility.
Some men's rights activists would argue that men too should have post-conception control of their fertility.