Because Bella wanted Edward to do it. Plus it didn't work out that way in Breaking Dawn.
Bella wants Edward to bite her and make her a vampire so she can live with him forever.
She must agree to marry him before he changes her into a Vampire. However, she becomes nervous about what people will think, but goes through with it in the end. (;
Everyone was FOR turning Bella into a vampire except Edward and Rosalie. So the vote was 6 (Bella, Esme, Carlisle, Alice, Jasper, Emmet) to 2.
In the Twilight Novel, two members of the Cullen Clan voted against Bella becoming a vampire. Those two family members were Edward Cullen and Rosalie Hale.
turning into a vampire before or after she has her baby
Bella has a gift that she is immune to all mind gifts. Like Edward cant hear Bella just like Aro. Jane cant hurt her with her mind painfulness. Alec cant make Bella feel nothing either. So when Bella becomes a vampire, she will be able to push the shield out from herself and defend others.
She can make a barrier so nothing can happen to her mentally
James gets killed, Bella ends up with Edward but he won't make her a vampire.
Bella And Edward do not want to turn Renesmee into a full vampire because they think it's best since Jacob imprinted.
No. He made up the excuse of a concusion to make Bella think that she didnt see what really happened. Because he didnt want to expose the secret of his family.
Bella asked Edward to make a deal with her to let her postpone becoming a vampire and turn her into one only after they got married.
Bella Swan is a human and she falls in love with a vampire named Edward. Edward invites Bella to play baseball with his vampire family, after Bella finds out he is a vampire. When they start playing more vampires (bad vampires) come and James, one of the bad vampires, tries to kill Bella.