Does fertility ‘fall off a cliff’ as you enter your fifth decade?

“Everyone told me it was going to be tough but nothing prepares you for the yearning that comes when you want to have a baby at a later stage of life,” explains Audrey. The 43-year-old, who met her husband five years ago, has been trying unsuccessfully for a baby for four years. She has just finished her sixth cycle of fertility treatment and is determined not to give up yet. “I know I’m supposed to...