Season 1 Episode 12
Episode aired january 25, 2000
angel and wesley search for answers when cordelia wakes up eight and a half months pregnant.
at the ob-gyn, wesley and cordelia are pretending to be mr. and mrs. pangborn. this appears to be an homage to science fiction writer edgar pangborn (1909-1976), who is famous for his classic novelette 'angel's egg' (1951). (see also angel's egg (1985).)