Not Since Ewe by Susannah Nix

Tess McGregor doesn’t need anyone.
So what if she doesn’t have any close friends or family anymore? Her successful consulting business keeps her so busy she barely has time to be lonely. She’s got her life organized exactly the way she wants it.
Until the daughter she gave up for adoption 30 years ago tracks her down.
Tess doesn’t know anything about being a mother, but now that she’s met Erin, she’ll do anything to stay in her life.
Even if it means facing the life-ruining jerk who got Tess pregnant in high school and broke her heart.
Donal Larkin would do anything for a second chance.
He’s divorced, his kids hardly talk to him, and he works so much he barely has time to eat. But when he’s united with the daughter he never had a chance to know, he vows to make up for past mistakes.
Step one is proving to Tess he’s not the same unreliable kid she knew 30 years ago.
And maybe if he’s lucky he can win back the heart of the girl he never got over…