Khloe and Tristan split up in December.
Khloe Kardashian didn't know Tristan cheated on her until after their surrogate got pregnant.
A source told The Mirror that Khloe had no idea about her partner's infidelity until after their second child was conceived.
The pair were living together and raising their daughter True just before the cheating scandal emerged.
A source told The Mirror, "The baby was conceived via surrogate before it was revealed to Khloe and the public that Tristan was having a baby with someone else in December."
It is believed the
couple's second child was conceived in November.
A representative for Khloe revealed she cannot wait to become a mum for the second time.
"We can confirm True will have a sibling who was conceived in November."
"Khloe 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."
According to reports, Khloe and Tristan's second child is due any day now. Some sources even claim their baby has already been born.
Khloe and Tristan have had an on-off relationship since they first started dating in 2016.
They most recently split up after it was revealed that the basketball player slept with
Maralee Nichols. Tristan cheated on Khloe on the night of his 30th birthday, just after she hosted a lavish birthday party for him.
It later emerged that Maralee Nichols was pregnant with the sportsman's child.
Tristan is also a dad to his and Khloe's 4-year-old daughter True.
He also shares a son named Prince with his ex-partner Jordan Craig.
