The most accurate response to how the end of World War II changed women’s roles moving into the 1950s is: Women were expected to marry young, have children right away, and stay home to raise their families.
After the war, societal expectations shifted towards traditional gender roles, which emphasized domesticity and motherhood for women. Many women who had taken on jobs during the war were encouraged to return to their roles as homemakers, as the prevailing cultural narrative emphasized family life and child-rearing in the post-war American society.