https://cdnph.upi.com/ph/st/th/5441781179849/2026/upi/d92cb76239b2072416a875f260313901/v1.5/Kaley-Cuoco-pregnant-expecting-second-daughter-with-Tom-Pelphrey.jpg" /> "Flight Attendant" and "Big Bang Theory" star Kaley Cuoco has announced she is pregnant, expecting a second daughter with her fiance Tom Pelphrey.