Rob Kardashian and Blac Chyna
Rob Kardashian and Blac Chyna are all set to become parents this fall. REUTERS

Model Blac Chyna and Rob Kardashian are expecting their first baby together.

As per reports swirling around, Chyna is due in fall and the couple already knows the sex of the baby. An insider report on E! news revealed that the recently engaged couple "are so happy about the news."

"Chyna wanted another baby and said if it happens, it happens."

The source also stated that the couple will soon start "getting one of the rooms in Rob's house all ready for the baby."

The news of the 27-year-old expecting a new born came to light when a celebrity portal leaked the news of Chyna's pregnancy. Although the couple wanted to publicize the big news on the Mother's day, they were forced to do the announcement on Friday due to the early disclosure.

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Commenting on the news, Chyna's spokesperson stated that only her inner circle knew about the news. He told Dailymail: "She had that moment stolen from her".

The representative also added that Chyna suspects Rob's family leaked the news in order to promote their upcoming episode of Keeping up with the Kardashian which is set to be telecast on Sunday.

"Allegedly the other half of her family leaked her story so she had to announce it," the rep told Perez Hilton.

Blac Chyna and Rob Kardashian started dating in January and got engaged last month.

Meanwhile, E! News reported that the couple knows the sex of the baby. "They do know the sex of the baby and will reveal it soon enough," the portal said, citing sources.