Khloé Kardashian is taking her sweet time naming her newborn baby boy.

The reality star and her ex-partner Tristan Thompson, who split again in January, welcomed their second child together, via surrogacy, this past week.

'Khloé is on cloud nine. Getting a sibling for True has been such a journey.' a source close to the situation revealed to

That insider went on to share that the Good American co-founder isn't in a rush to decide on a name for her new baby.

'Khloé hasn't shared a name yet. She is taking her time with the name,' the source continued, adding, 'She wants it to be just right.'

The news broke that the on-again, off-again couple were expecting a son together on July 13, about seven months after their last breakup.

They are already parents to four-year-old daughter True Thompson.

'My happy sweet girl,' the proud mom, 38, gushed in the caption of her latest Instagram post showing the little girl flashing her infectious smile.

Mommy's girl: While taking her time sifting over names for her son, the Good American co-founder posted another adorable photo of her daughter True Thompson, four, on Sunday

'We can confirm True will have a sibling who was conceived in November,' a representative previously told People. 'Khloé is incredibly grateful to the extraordinary surrogate for such a . We'd like to ask for kindness and privacy so that Khloe can focus on her family.' 

The exes have had a rollercoaster relationship since they first started dating back in 2016. 

In September 2017, rumors began circulating that the Keeping Up With The Kardashians star was pregnant with her first child. The NBA player, who was with the Cleveland Cavaliers at the time, was already a dad to son Prince, whose mother, Jordan Craig, was pregnant when he started the reality star.