Caitlyn Jenner's daughter Cassandra Marino expecting baby

Reality TV star Caitlyn Jenner's eldest daughter, Cassandra Marino, is pregnant and expecting her third child. Marino's mom is Caitlyn's first wife, Chrystie Crownover, who she was married to from 1972 to 1981.

According to a source, Marino is expecting a boy this October, reported Us magazine. The 35-year-old is already mom of daughters Isabella and Francesca with husband Mark.

During her sit-down interview with Diane Sawyer post her gender transition, Jenner, 66, admitted she was absent from Marino's and sons Burt, Brandon and Brody's lives.

"The big, formative years for them, I was really struggling with these issues," Jenner had told Sawyer. "I talked to all of the boys about this after the fact, that, yeah, I didn't do a good job. And I apologised to my kids for that."

The clan has, however, since repaired their relationship.