Daddy By Default by Shawn Bailey

Derek Webster’s world gets turned upside down when his nineteen-year-old pregnant sister, Ashlynn, is injured in a car accident. The doctors manage to save the infant, but Ashlynn succumbs to her injures. Derek becomes guardian to his nephew and discovers it leaves him little or no time to socialize.
Chance Richards is at the top of his game. He has a job he loves and a loving family. The only thing he lacks is a serious relationship. He meets Derek, a young man with a gorgeous soul and a six-month old baby. The two of them may be happy together, or Chance’s fears and vulnerabilities about the future can put an end to them before their relationship starts.