The Beverly Hills 90210 alum and the Dancing With the Stars pro announced the news via a beach-themed photo shoot in Hawaii.
The couple first started dating in October 2020, a few months after Brian confirmed his divorce from Megan Fox.
This will be Brian’s fifth child. He shares Kassius with his ex Vanessa Marcil and three sons with Megan Fox. This is Sharna’s first child.
Sharna previously spoke about children to Entertainment Tonight, saying last June, "They've always been on the cards for me. So we'll see what the universe says will happen. We're just going to leave that open."