The 34-year-old mum to North West reportedly underwent IVF treatment allowing her to choose the gender of her second child.
โShe only had boy embryos implanted,โ a source close to Kim told Us Weekly.
The procedure that predetermines the childโs sex can start at roughly $US17,000 and it entails the doctor isolating fertilised embryos of the preferred sex in a lab, then placing them into the uterus.
Earlier this week, Kim confirmed she was expecting a baby boy in classic Kardashian style โ via an Instagram post.

Kim shared this snap of her family, where she confirmed she was expecting a baby boy.
The proud mum shared a snap of her hubby, Kanye West reading a story book to their daughter, North, with the caption:
โPrecious moments like this when we were traveling on tour with you are what I live for. Youโre such a good daddy to North & you will be the best daddy to our new son too!โ
An insider close to the couple admitted that โKanye and Kim are so excited to complete their family. Kanye loves Nori more than anything, but to make his world complete, he wanted a little boy, an heir.โ
While a friend close to Kim revealed how happy the pregnant star โalways wanted two kids. A girl and a boy.โ
โKim would have happily taken a healthy baby, but being able to choose the sex is the cherry on top,โ they added.
The reality starlet has always been clear with her desire to expand her family.
โWe are trying. We try every single day. You canโt try harder than we try,โ she recently confessed to E! News.
Adding of her struggle: โItโs getting exhausting. He always says, โtrying for baby number two isnโt as fun as trying to baby number one.โ
It looks like Kim is getting her happily ever after! A huge congratulations to the soon-to-be-mum-of-two.

Kris Jenner was the first of the Kardashian clan to congratulate Kimye.