Question

this book is about a girl who falls in love with a vampire but in the 2 book he leaves and then she falls in love with a wolf and in the third one she has to choose bettween the vampire or the wolf and she picked the vampire and in the 4 book they get married and she has a child then the girl is a vampire and these others vampires try get her child a i kill it because they thought the baby was imortal but she wasent and then it ended

Answer 1

The book is twilight.

Answer 2

Twilight series I believe is what your looking for, although I asked my son what that stupid movie about the vampires was and he said Transyvania lol, but the answer you want is Twilight.