Current rules mean a single sperm donor can only create ten families in this country. But there is no regulation limiting the number of families that donors can create overseas.
The most common age to freeze eggs in the UK currently stands at 38, yet women in their twenties are increasingly urging others of the same age to opt into the procedure.
EXCLUSIVE: Under current official guidelines in the UK, women under the age of 40 struggling to have a child should get three cycles of the fertility treatment on the NHS.