Brian Austin Green Says Welcoming Baby Zane with Sharna Burgess

Beverly Hills, 90210 Alum, 48,  was initially "worried" about becoming a parent

but his son Zane Walker Green was born on the 28th.

She was the stepmother of the three young children

She said,'I don't know if  I can do everything I want to do

Burgess was already the stepmother of Green's children.

He shares his children Journey River (5 years old), Bodhi Ransom (8 years old)

ex-wife Megan Fox and his 20-year-old son Casius with ex-Vanessa Marcil.