Having aired the sweet during an appearance on Ellen DeGeneres' show, Kim then posted the pictures on her Instagram account.
"#MyWorld," was the caption on a montage of pictures of baby North, while another, of the youngster and her father Kanye West, was labelled "#MyFamily".
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During her time on the show Kim told comedienne Ellen that North – her first baby with fiancé Kanye – has a lovely temperament, saying: "Her personality is so cute. She is really calm and really quiet."
While on the show, the 33-year-old talked frankly about pregnancy, admitting it had been tough on her.
"The pregnancy, I wouldn't really wish that upon anyone. Anyone,' she said, to which Ellen replied: "Then you can adopt."
Kim added: "It's all worth it in the end, so I would definitely suffer through that, but pregnancy was not a good experience for me. At all."
Ellen said: "Women who say that it's a beautiful thing I would think..., ' before Kim stopped her.
"They are lying. They are lying to you. I'm telling you,' she said. "Kourtney said that, my mum said that. I was literally giving birth and I looked at my mum and I said, 'I'm going to get you a medal. You deserve everything.'
"My labour was easy, but just the whole pregnancy was so... I had a few medical issues, so it was really tough, and I gained a lot of weight."
Kim revealed she suffered from Pre-eclampsia, which meant she had to deliver North early. "But I wouldn't take any of it back because I have the most adorable, sweetest baby in the world," she enthused.