Mark Zukerberg expecting 2nd child? Facebook CEO shares adorable pic with his daughter

Facebook CEO,Mark Zukerberg shared this playful photo with his daughter while hinting his wife,Priscilla may be pregnant with their second child.He wrote
The joys of fatherhood. Stretching after a long swim and bike. Max tries to stretch like dad and kicks me in the face. Beast gets jealous and sits on my head. And one more coming soon!