Love Comes Softly (movie, 2003)

Marty is a 19 year old pioneer woman, recently married. She goes west with her husband Clem, hoping to start a new life. But Clem unexpectedly dies, and Marty finds herself alone, two months pregnant. Clark Davis, a widower, offers her a marriage of convenience: she needs food and money, and he needs someone to take care of his daughter Missie. She accepts his proposal as a temporary solution.