The Telegraph - Published: 11:32AM BST 12 Oct 2009

Dale Chalk and her husband Darren with 9 of their
children
Mrs Chalk, 31, who has undergone IVF treatment, made headlines
by having quadruplets twice.
Now, she and her husband Darren, who live in Sydney, have added
to their brood, and are now the proud parents of 11 children under
the age of seven.
The first set of quads - two boys and two girls - were born in
August 2004 and are due to start school next year.
Mrs Chalk became pregnant with her second set of quads in 2005.
The babies were delivered in October of that year but only three
survived.
The couple also have a six-year-old daughter and another girl
born in 2007.
They are understood to have used a low-grade infertility
treatment for the multiple births.
"We'd love to have more children, but medically, that's it," Mr
Chalk told the Courier-Mail newspaper. "We'd have to buy a
bigger bus!"