Her Pregnancy Secret

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.
She'd almost made him believe she was innocent 

Michael North knew Bree Oliver was a gorgeous gold digger after his brother's fortune, so he seduced her in a night of lovemaking and swore he'd let her go. Then a tragic accident changed everything. Now he must honor a deathbed promise to his brother—to protect the one woman Michael can never trust. 

But watching over the pregnant Bree tests the tycoon's self-control. Is Bree as virtuous as she claims? Or is he a fool to fall for her act? Torn between desire and distrust, Michael's walking a treacherous line, unaware of the shocking secret she's carrying….