The Heirless Alpha's Exclusive Devotion

Kaelen, strongest Alpha of his werewolf clan, struggles with fertility; his grandfather arranges marriage with the Chris family. Chris, mistreated at home, flees, works at a bar, is drugged, and has a one-night stand with Kaelen, getting pregnant. Mocked borrowing money at home, she's rescued by Kaelen, who insists she keep the baby and punishes the bullies. Chris gives birth; the family lives happily ever after.