Things are moving fast for Khloé Kardashian and boyfriend Tristan Thompson.

After just four months of dating, sources are revealing exclusively to Life & Style that the KUWTK star is ready to start a family with the NBA player.

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"She wants to have a baby with Tristan right away and isn't bothered by the fact that he just became a dad," says an insider. "Khloé feels healthier than ever and thinks this is the perfect time to try for a baby."

Tristan, 25, welcomed his first child, a baby boy named Prince, with his ex-girlfriend Jordan Craig this past December.

Khloé, 32, has always been vocal about wanting to become a mom, and Aunt KoKo has had plenty of practice with her six nieces and nephews.

"At the time, I was like , 'Oh, I have to have a baby!'" she said of her failing marriage to ex Lamar Odom. "That's all I wanted at the time, and I thought it would maybe fix the situation [with Lamar], so I'm also happy it didn't happen because I was young. I was 27, and I thought, 'A baby will fix this,' and it's not going to fix that."

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She continued, "I do want to have a baby in my life."

However, it won't be easy for her to conceive, as she has also been very candid about her fertility struggles in the past.

khloe kardashian lamar splash

"I found out I don't ovulate," she said on Kourtney and Kim Take Miami, "and my my uterus lining isn't thick enough and I have to take pills to make my uterus lining thicker. If that doesn't get thicker, then I cannot carry a baby."

The Good American designer finalized her divorce from Lamar this past October, clearing the way for her to tie the knot again. However, she isn't rushing down the aisle just yet.

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"She's telling everyone that Tristan's the one," adds the insider. "She's over the whole idea of marriage for now. She just wants to become a mom."

We think KoKo would be the best mom! For a look back at her amazing weight loss transformation, click through the gallery below!