<Tr> <Th> First appearance </Th> <Td> "Pilot" </Td> </Tr> <Tr> <Th> Last appearance </Th> <Td> "One Last Ride" </Td> </Tr> <Tr> <Th> Portrayed by </Th> <Td> Amy Poehler </Td> </Tr> <Tr> <Th_colspan="2"> Information </Th> </Tr>

When does leslie tell ben she's pregnant