Wicked Union (The Wounded Hearts) by Lydia Hall

SHE'S MY RIVAL, MY WIFE, AND THE BEARER OF MY HIDDEN HEIR. I brought her into my world with blood on my hands. Her brother's blood she knows nothing about. With a ring and a deadly secret. Despite our mutual distrust, we found something unexpected. Power. Passion. A fragile alliance. But it was all built on a foundation of lies. A hitman's calculated deception. She made me question everything... While hiding a truth of her own. I'll defend what's ours, no matter the cost. Then I'll uncover why Aria guards her belly so fiercely... Before she discovers the truth that could destroy us both. WICKED UNION: Where love and danger collide in the city of angels. A scorching mafia romance featuring forced marriage, enemies-to-lovers, and a pregnancy that could change everything.