Love's Unfolding Dream (Love Comes Softly #6) by Janette Oke

Book 6 of the bestselling Love Comes Softly series. Belinda, Marty and Clark Davis's "surprise child," has always had a tender and compassionate heart toward anything hurt and broken. Her parents watch with both misgivings and genuine pride as Belinda's older brother, Doctor Luke, influences her toward nursing. Will she have the inward strength to face the "hurt and broken" people whose bodies, minds, and emotions need mending? Belinda's niece, who is also a teenager, comes to live with the Davis family to finish her schooling. How will Melissa's arrival affect Belinda's lifelong friendship with Amy Jo? And what happens when all three fall for the same nice fellow?