Katie Price has reportedly said that Kieran Hayler's affair with married best friend Jane Pountney has "left her in more pain that when Peter Andre left", according to her friends.
"When she split with ex Peter Andre it was a completely different pain. Neither cheated"
Inside sources at Now magazine claimed: "Katie is devastated beyond belief.
"When she split with ex Peter Andre it was a completely different pain. Neither cheated. This is completely different because she has been betrayed in the worst way.
"Kate keeps saying this is the worst pain possible. Her head is a mess, she's feeling devastated, destroyed and hurt beyond belief."
Another friend revealed to Closer that Katie is desperately worried about the affect her recent stress levels will be having on her unborn baby.
They explained: "Katie's trying to stay calm for her baby's sake, but she's barely eating or sleeping and is devastated.
"She's distraught and has told friends she fears for her babies life and will blame Kieran if she loses the baby."
Katie Price is six months pregnant with her and Kieran Hayler's second child.
She currently has four other children; Kieran's son, baby Jett, Peter Andre's children, Princess and Junior, and eldest son Harvey, whose father is Dwight Yorke.
Read this week's issue of Closer, on magazine stands now, to find out more about Katie Price and Kieran Hayler.