Caitlyn Jenner is ready to support daughter Kylie Jenner as she goes through pregnancy with her first child, a source close to the family tells PEOPLE.

While other members of the family have expressed concerns about whether the 20-year-old is prepared to be a mom, Caitlyn is looking forward to welcoming a new child into the growing family.

“She’s happy,” the source says. “She’s ready to be there for Kylie and will be a big part of the baby’s life.”

On Friday, multiple sources confirmed to PEOPLE the news that Kylie is expecting a girl in February with her new boyfriend Travis Scott, 25.

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“They started telling friends a few weeks ago,” a source said of the Life of Kylie star and her rapper boyfriend. “The family has known for quite some time. She is really excited and so is Travis.”

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But Kylie isn’t the only member of the clan who is expecting a baby.Kim Kardashian West and Kanye West are expecting their third child after hiring a surrogate to help them expand their family. Sister Khloé Kardashian is also expecting a baby with her boyfriend, NBA star Tristan Thompson.

Caitlyn Jenner, 67, is thrilled at all the latest developments in the extended clan. Says the source: “She’s happy about all the babies coming into the family.”