As part of my research, I interviewed egg donors and doctors and also observed women in fertility clinics to get a better sense of what the process was actually like.
There are many cultural and social factors involved in making a baby into a man or a woman. But biologically speaking, sex starts when you’re just a tiny group of cells in your mother’s uterus.
Most women will have been made aware they have a ticking biological clock. But most probably don’t know it’s because women are born with a limited supply of eggs, and eventually they will run out.