Lily Rose by Deborah Robinson

Lily Rose was an accident.  It was the first time her mother had sex and she didn't think about contraceptives...

Skyhorse sent me a copy of the book to read for review (thank you).  It is being published today.

She makes a deal with the boy's parents.  She'll put the baby up for adoption and not tell who the father is for a sum of money.  She moves on, using the money to completely change her lifestyle.

Lily is adopted by a loving couple and lives happily with them until they are killed in an accident.  Then she goes to live with her adopted mother's older sister and her husband.  

When she goes off to college, she meets a young man and falls in love.  Life is good for a while, then he wants a divorce so he can marry another woman and she's all alone again.  She decides to look up her mother, who tells her to get lost.  Then she goes looking for her father.  Will he be any nicer?  She just wants to belong to a family...