Four years ago on that day, Kim Hefer gave birth to twin boys. Incredibly, on the same day this year, she gave birth to another set.
It is believed to be the first time a pair of naturally conceived twin boys have been born on the same day in different years in Britain.
Although the chances of a mother who has had one set of non-identical twins having another are quite high, it is almost unheard of to have another set on the same day. Mathematicians say the odds are 500,000-1.
Mrs Hefer, 29, gave birth to Devon and Logan on July 18 this year, the birthday of four-year-olds Tristan and Blake.