The Girl Who Didn't Think (1917)

Shopgirl Lucille Ryan is an easy target for playboy James Lambert's wolfish charms. Succumbing to Lambert's promises to make her his wife, Lucille soon discovers that she's expecting. Soon after, Lambert casts her aside for socialite Irene Wallace. Lucille, reading the announcement of Lambert's wedding in the paper, rushes to the altar and denounces him as her child's father. The ceremony is halted, and later Lambert accepts his responsibilities by marrying Lucille.