Khloé Kardashian and Tristan Thompson Welcome Their Second Baby via Surrogate

Khloé Kardashian and Tristan Thompson's newest little one has arrived, PEOPLE confirms.

A rep for the Good American co-founder, 38, tells PEOPLE that Kardashian and the NBA player, 31, –– who split in January –– welcomed their second baby together via surrogate.

The newest addition is a baby boy.

Kardashian has not yet decided on a name for her son, a source tells PEOPLE.

Last month, it was revealed that Kardashian and Thompson were having a second child together. The exes are already parents to 4-year-old daughter True Thompson.

Khloe Kardashian/Instagram

RELATED: Khloé Kardashian Expecting Baby No. 2 with Ex Tristan Thompson via Surrogate: 'Incredibly Grateful'

"We can confirm True will have a sibling who was conceived in November," a representative previously told PEOPLE.

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"Khloé is incredibly grateful to the extraordinary surrogate for such a beautiful blessing. We'd like to ask for kindness and privacy so that Khloe can focus on her family."