Call Her Mine by Melissa Foster

Ben Dalton has always been honest, except where his heart is concerned. He’s been in love with his best friend—saucy, smart-mouthed Aurelia Stark—forever. But Ben’s a planner, and timing has never been on his side. When he finally decides to make his move, Aurelia beats him to the punch with a move of her own—to a different town.
Aurelia loves her new life in the charming town of Harmony Pointe. She has a great apartment and her very own bookstore, and best of all, the sinfully hot, commitment-phobic friend she’s crushed on for years is no longer just around the corner. Maybe she’ll finally be able to leave her unrequited love behind and move on.
But when a baby is left on Ben’s front porch—a baby that is presumably his—Aurelia is there for him. Neither one knows the first thing about babies, but how hard can it be? Ben and Aurelia are catapulted into a world of love, laughter, and tracking down the baby mama, and it might even add up to a very happily ever after… just not one either of them expects.