Bella discovers that she is pregnant in chapter 7 (Unexpected) of Breaking Dawn.
Bella does not get pregnant in New Moon. She gets pregnant in Breaking Dawn but... Bella figures out she pregnant in chapter 7, but Edward gets Bella pregnant in the chapter called isle Esme.
In Book 2: Jacob. The chapter lasts throughout Bella's pregnancy to her childbirth.
I think that may be the chapter after Bella finds out she is pregnant. So book 1
Bella finds out page 123 of breaking dawn although I'm not sure what page he gets her pregnant but it is in or after chapter 5.
Well, Edward puts his venom in Bella in the last chapter of Jacob's persspective, but that chapter repeats in the first chapter of the third book - Bella. She IS a vampire in the second chapter in book 3 - Bella.
Bella is pregnant and she has to drink blood to save her baby. Sam comes to try to attack Bella and Jacob leaves Sam's pack because he cares too much for Bella.
No one knows for sure but I estimate 1 month exactly. In chapter 7 she finds out she is pregnant and has been since the wedding which was seventeen days ago. In chapter 8 it mentions that Bella had been back in Forks for 7 days (one week) which altogether makes 24 days. Add another week for Jacob protecting Bella and that makes 1 month! Possible more....
He tells her that in chapter 15, The Cullens.
Edward Asks Bella To Marry Him In Chapter 24. Vote
Bella does in get pregnant is The Twilight Saga: Eclipse.
Yes, Bella did get pregnant in Breaking Dawn.
From Jacob's point of view, Chapter 18 From Bella's point of view, Chapter 19