Accidents Happen by Louise Millar

Kate Parker has suffered two tragedies in her life--the death of her parents on her wedding day and then the murder of her husband, Hugo. She is now a shadow of her former self and struggles to live a normal life with her son, Jack. Worried about his safety, she is obsessed with the statistical probabilities of all the things that could go wrong in their lives. Her relationship with her in-laws and sister-in-law (Hugo's family) is also disintegrating. However, hope comes when she meets a man named Jago Martin, who slowly helps Kate face her fears and start living again.  Will Kate get the happiness she deserves--or just more sorrow? A good read-alike for Erin Kelly.