At First Sight, by Nicholas Sparks

Plot:
There are a few things Jeremy Marsh was sure he’d never do: he’d never left New York City; never given his heart away after barely surviving one failed marriage; andhad  never become a parent. Now Jeremy is living in the tiny town of Boone Creek, North Carolina, engaged to Lexie Darnell, the love of his life, and anticipating the start of their family. But just as his life seems to be settling into a blissful pattern, a mysterious and disturbing e-mail sets off a chain of events that will change the course of this young couple’s relationship. How well do we really know the ones we love? How do we handle the inevitable doubts, fears concerning parenthood, and stumbling blocks that are sometimes placed in our way? Continuing the story of the young couple introduced in Sparks’s bestselling True Believer, this novel captures all the heartbreak, tension, romance and surprises of those who are newly wed. An astonishing tale about the love between a man and a woman and between a parent and a child, At First Sight is about endings that bring new beginnings . . . tragedies that lead to unexpected joy . . . and, most of all, the magic of everlasting love.

My Opinion: 'It has spoilers'
'At First Sight' it's the sequel of 'True Believer'.
First of all, let's recall a few basic things about the story:
1) Jeremy is incapable of having children, at least that's what the doctors say. The only person who knows that is Lexie, his fiancée.
2) 'True Believer' ends with Lexie confessing to Jeremy that "They are having a girl!" - proving to Jeremy that miracles are out there and that many things in life can't be explained by scientific facts or theories.
3) Jeremy writes articles for a NY's magazine. His articles reveal the truth and offer an explanation for paranormal phenomena that happen,which can be fictional or even fake. In other words, an opportunity showed up in South Carolina, in a village called Boone Creek (a fictinal town - created by Nicholas Sparks) where the dwellers believed that, in a foggy night, the ghosts of their ancestors appeared inside the grave borders, claiming to protect the village that once belonged to them. In 'True Believer' Jeremy finds out what's causing the ghostly lights to appear, while he falls in love with a woman that works in the local library.

After deciding to live with Lexie (in her small little town), Jeremy begins to feel the difficulty of dealing with her pregnancy, the slow refurbishment of their future house, the preparations for the wedding and the fact that in small towns there's no secrets or any privacy. With this overwhelming tension Jeremy ends up not knowing what to write, risking to be fired.

As expected there's a few ups and downs in their relationship:
1) Lexie starts to visit her childhood friend - Ronnie - intending to find out where is Rachel - she ran away, right after arguing with Ronnie. When Jeremy is driving through town, he accidently sees the two of them holding hands. Meanwhile Jeremy receives two twisted e-mails which ask if Lexie is really carrying his baby (and connecting the dots - his trust in Lexie is put to test)
2) At his bachelor party, he gets to know the identity of those e-mails - which is his friend and work partner Alvin - and that Rachel spent a couple of days with him, in NY. Taking the advantage of being in NY, Jeremy walks by his parents house and discovers that Lexie has been sending letters - mainly about how the wedding's preparations were going, how's going to look their future house and that both of them were happy and healthy. His love for Lexie increases and sets his soul on fire.
3) They have a small wedding in a beach with their closest friends and family. As the tension and excitement sets down a little bit, Jeremy is once again able to write articles (being this way able to support his family). Now it's time for the trips to the hospital for doing the scans. The doctor tells them that the baby is healthy. However the amniotic band is freely swimming around the baby and if it fixes to any part of the baby, she might have some disabilities (not being able to run or throwing a ball) or may even die. It's a harsh time for the young couple, but when it's time to bring to the light another life, Lexie's life is traded by her own daughter.

The best part of the book is when Jeremy is able to accept her lover's death and take care of his daughter. Everyday he recalls details of Lexie in Claire, and when she is struck with nightmares, Jeremy brings her to the cemetery where he saw Lexie for the first time, where he met the supposed ghosts of Lexie's parents and the reason why he came to Boone Creek. After that foggy night, Claire has never woken up screaming again.