Kourtney Kardashian and Scott Disick are expecting their third child. She has already started to inform her family about her pregnancy. 35-year-old Kourtney is pretty excited about sharing the news with her sisters.

According to HollywoodLife.com, she told Khloe and her boyfriend, French Montana.

"Kourtney told Khloe and French she was pregnant at Philippe Chow the other night," said a source to the Web site.

A source informed PEOPLE that Kourtney is excited but at the same time she is nervous too.

"Three kids is a lot to handle! But she's happy - she's always wanted a big family with Scott," said the source to PEOPLE.

The new baby is ready to join the family in December. Scott and Kourtney are already parents to Penelope Scotland and Mason Dash.

On Tuesday, Kourtney and Khloe were spotted in the Hamptons after a double dinner date. Reportedly, they were in the city to shoot the latest episode of the reality show.

Scott and Kourtney have been dating for eight years. A source told Us Weekly that this third child was planned. The source also informed she wants to have a handful of children.

Kourtney and her boyfriend have been open about expanding their family.

"It's just what came naturally to me. My family definitely all think I'm insane for having [the kids] in the bed and breastfeeding them for forever," said Kourtney.

She explained that Penelope and Mason always come first for her.

For the eldest Kardashian, nothing comes before her kids.

"Knowing my priorities. Nothing comes before my children," said Kourtney.

"I find that putting everything else in order of importance also helps to get everything done! Having an amazing partner, Daddy [Scott Disick], doesn't hurt either," added the reality TV star.

What do you think about Kourtney Kardashian and Scott Disick having their third child?