I need the name of a Beatles song about luck, fate, loyalty, or obligation!?

Help! I need a song with this theme, especially bad luck or fate not being on your side, or loyalty to your family. Even if you're not sure. If you know of one about the role of cles, the role of women/women's rights, loveless marriage, obligation/loyalty, or family loyalty (which I doubt) that would be great. Tell me which theme and the song name.