© Rex Features
The tennis pro and his former Home and Away actress wife Bec, who already have daughter Mia and son Cruz together, are believed to be considering settling down permanently after the birth of their third child.
A friend of the family told Woman's Day magazine: "[Bec] reminds [Lleyton] they need a stable routine that just can't exist on the tennis circuit."
It is rumoured that Bec hopes to put an end to their travelling lifestyle and the strain it puts on the whole family once the new baby arrives and Mia starts school.
Last year, Bec said that they would "wait until we're finished travelling" before having another child.
