Bachelor Mother (1939)
Bachelor Mother (1939) is an American comedy film directed by Garson Kanin, and starring Ginger Rogers (in a mostly non-dancing and non-singing role), David Niven, and Charles Coburn. The screenplay was written by Norman Krasna based on an Academy Award nominated story by Felix Jackson (aka Felix Joachimson) written for the 1935 Austrian-Hungarian film Little Mother. With a plot full of mistaken identities, Bachelor Mother is a light-hearted treatment of the otherwise serious issues of child abandonment.
More at Wikipedia.