Book ~ "No-One Ever Has Sex On A Tuesday" (2013) Tracy Bloom

From Goodreads ~ Never has a late-night stand led to such chaos! 

Childhood sweethearts Matthew and Katy agree they must never see each other ever again after they end up in bed together following a school reunion. 

So all is forgotten ... until eight months later when a shock meeting at an antenatal class forces them to confront the fact that Matthew could be the father of Katy's baby. Oblivious to the mayhem unfolding, Matthew's highly strung wife frets over giving birth to twins and Katy's much younger boyfriend refuses to take fatherhood seriously. 

Love and life are messy but Katy and Matthew take things to a whole new level as deep emotions begin to resurface and hormones run riot. How will they navigate their way through this almighty pick-up?

Katy and Matthew were high sweethearts but broke up at the beginning of their first year of university.  She was hurt so badly that she never let anyone get close to her again.  She has been dating Ben, who is eight years younger than she is.  They have a carefree fun relationship.

Katy and Matthew hook up at their 20th high school reunion.  Eight months later they run into each other at prenatal classes ... Matthew and his wife are pregnant with twins.  Katy's baby could be Ben's but it could also be Matthew's.

This was the first book I read by this author and it was okay.  I liked the writing style ... it was well-paced for the most part and kept me interested.  The editing could have been better ... there was a lack of punctuation and typos.  The language at times is for mature readers.

I can't say that I was crazy about the main characters.  I didn't think it was right that Katy let Ben think that the baby was his (it could have been his or it could have been Matthew's).  And I found it unbelievable that Katy was still being influenced by the hurt from Matthew twenty years ago ... they were just kids when they broke up!  Get over it!  I found Ben annoying at first ... he seemed a lot younger than his late 20s.  I started liking him more towards the end.  I didn't like Matthew at all ... I thought he was a pompous A-hole.  I found it amazing that after twenty years, he felt he could come back and be involved in Katy's life with no regard to anyone else.  Though I didn't like his wife, Allison, I felt sorry for her.  Daniel and Braindead were amusing.

All in all, I'd checked out other books by this author.