Caitlyn Jenner's family is reportedly expanding, with some outlets suggesting that her son Burt has welcomed a new baby. However, there is uncertainty about the details, including the baby's name, gender, and whether Burt's partner or another family member is the parent. The number of Caitlyn Jenner's grandchildren is also unclear, with reports ranging from a new addition to her existing family to a total of 20 grandchildren.