Kourtney Kardashian, 41, says she froze her eggs at 39 in case she wants to have another baby

Leaving the window open.

She is a mum of three, but Kourtney Kardashian is clearly not 100 percent sure she is done having babies just yet. The 41-year-old already has children - Mason, 11, Penelope, eight, and Reign, six - with ex-partner Scott Disick, but Kourtney admitted to Sarah Hyland on the show Lady Parts that she might not be done adding to her brood – and wants to leave the window open for future children.

"I froze my eggs at 39," the POOSH founder shared as she was joined on the show by younger sister Khloe, who also says she had her eggs frozen to preserve her fertility. "Since everyone else was doing it I thought I may as well."

Kourtney, who is now rumoured to be dating rocker Travis Barker says she got caught up in the moment when Chloe was having her eggs frozen, and did it as well.

However, she is not yet sure if she will ever use them, as she doesn't know if she will ever want another baby.

"I froze my eggs and hopefully they are sitting there OK, you never know," the reality star admitted on the show. "I really got talked into it. I was like, "OK, whatever, I’ll do it one time since everyone else is doing it. I might as well."

Kourtney, who joked her eggs were 'top notch' said freezing her eggs gave her a feeling a 'taking a deep breath.'

"I was about to turn 40, everyone was like, everyone stop rushing me I don't even know if I want to have another kid or if that is in the future."

The star said she liked having control over her body and a 'peace of mind' over the eggs, even she is still doesn't know if she'll ever want to add to her family.

'I’m someone who’s like, What’s God’s plan? Am I supposed to get pregnant on my own at 41? Maybe that’s God’s plan. I’m more like that. That’s I think why I never did the planning."

Khloe added that Kourtney had the attitude of: 'If it's meant to be, it's meant to be.'