Katie Price says she frantically tried to perform CPR after finding puppy Rolo dead.
The puppy tragically died this week after suffocating when he was caught underneath an armchair at the former glamour model's home, as the Mirror revealed yesterday.
Rolo had been with the family for three weeks after being gifted to daughter Princess on her 13th birthday.
In a new YouTube video posted tonight, Katie and Princess sat side-by-side as they explained what had happened to their dog.
And Katie spoke of how she'd tried to save him.
She said: "So I know the fans are asking what's happened to the dog.
"Basically I was in the other room because we're going on holiday, packing their suitcases, and there was five people in the other room, so people saying the puppy was left, it wasn't left at all.
"And it just got stuck under one of the chairs."
Princess said: "Bunny was even there playing with him so it's not like he was on his own."
Katie said she was just told that the dog had died and she asked "What do you mean?"
"It's just awful," she said.
"It absolutely wasn't anybody's fault, it was an absolute freak accident. I still can't believe it, I'm still in shock."
Katie said she was told by a vet that what happened with the dog was "really common".
She said: "They're small puppies, they get into small spaces, suffocate, this, that.
"As soon as we found the dog I said 'Oh my god, he's got to still be alive'. I started pressing his chest, took him to the vet straight away and he was pronounced dead, there was nothing they could do, but they did say he wouldn't have died in pain, it was quick.
"We're having to deal with the dog and as a mum I just feel for Princess, it's awful. I'm so upset for Princess. At the end of the day it's poor Princess' dog that's gone, the whole family is distraught."
Katie and Princess said they were speaking out after being trolled over the death of their pet, with people saying they were to blame.
"Having to make that phone call to my daughter was the worst thing in the world," she said. "Because I don't want to make her heartbroken, she's literally been heartbroken twice for something she's genuinely fallen in love with. She doted on that dog."
Katie went on: "I'm genuinely devastated that this has happened and people trolling us and turning on us, it's not even our fault it's happened. I don't even know what to say."
Princess said: "I don't even know why people are hating to be honest."
Katie also said she didn't understand why the breeders had turned on her.
She said: "I've never said a bad word about them."
And Princess jumped in: "If anything, mum really stuck up for them so for them to turn on mum is just wrong."
Katie said people shouldn't be blaming the breeders because it wasn't their fault, but that it was "inconsiderate" of them to text Princess and ask questions after she'd told them what had happened.
"She's 13 years old, you don't do that," she said.
"Just let us grieve and get on with it. Obviously we've had to tell you what's happened because it's one of the worst things to see a lifeless puppy there who was fine five minutes before, because it came to see me."
