Heidi Montag has surgery in hope of conceiving second child with Spencer Pratt

Heidi Montag, husband Spencer Pratt and son Gunner (PA)

The Hills star Heidi Montag has revealed she has had surgery in the hope of conceiving a second child with husband Spencer Pratt.

The couple, who shot to fame on the US reality show and took part in Celebrity Big Brother in the UK in 2017, are already parents to son Gunner, three.