The Bastard by V. K. Ludwig

How much can you love someone who isn’t perfect?
Ayanna has never known the pleasure of a man’s touch—and few women have; ever since the government seized control of human reproduction. Artificial insemination is the new norm, and no one may have a child without the express permission of the government: no exceptions.
When Ayanna’s request to become pregnant is denied, she is shattered— until she gets the opportunity to travel to the Clan of the Woodlands. A group of people free from government oppression, where women are few but strong men are plenty.
Maybe she won’t need the government’s permission after all?
… At least not as long as River, her hot and selfless bodyguard, doesn’t get in the way.
But in a world divided into two warring factions, torn apart by one’s efforts to improve the human race, no one is as they seem, not even River. He’s keeping a secret from Ayanna—a secret that could destroy the dream she holds closest to her heart.