Kim Kardashian
Kim Kardashian and Kanye West are reportedly expecting fourth babyReuters

Kim Kardashian's sisters are reportedly not happy about her and Kanye West's baby news. It was recently revealed that the couple are expecting a fourth baby via a surrogate.

According to US Weekly, the 38-year-old reality star and the 41-year-old rapper's baby boy is due in May. The couple apparently used the same surrogate who carried their daughter Chicago.

Kim's siblings are supposedly worried for her, as she is already struggling to save their marriage. A source told Radar Online: "Kim's three kids are already raised by a team of overpaid nannies and help. All that this pregnancy means is that she is going to have to hire two new nannies to take care of her new baby."

"Kim's sisters think that the last thing she needs is another child, but they are not going to say anything because Kim has her mind made up," the insider added.

"Beings she already has two girls and only one boy, Kim told her sisters that they need another boy to even up the score," the source went on. "Having two boys and two girls is Kim's dream."

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Celebrating Saint with a Tarzan themed party ?

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Kim tied the knot with Kanye in Florence, Italy, on May 24, 2014. In October, she appeared as a guest at The Alec Baldwin Show and spoke about her marriage, the Gold Digger rapper, and her children. The entrepreneur claims to have given up a lot to make their relationship work. She said: "I think being with a man like Kanye, you have to learn how to be a little bit not so independent."

The Keeping Up With the Kardashians star added: "I've always been so independent and working, and [had a] schedule, and when you get married and have a husband with a career and kids, your have to let it go. I had to learn that being with a man like Kanye."

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Merry Christmas ?

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Meanwhile, Kim had previously talked about her experience using a surrogate to Elle magazine. She said: "The control is hard at the beginning. Once you let that go, it's the best experience. I would recommend surrogacy for anybody."

"My home and my heart feel really full right now, in the best way," she said, revealing that four would be her limit.

"I don't think I could handle more than that. My time is spread really thin. And I think it's important that in all couples, the mom gives the husband as much attention as the kids," she went on.