Bella and Edward get married, but their honeymoon is cut short
by Bella's realization that she has become pregnant. Bella's
pregnancy progresses at an extremely fast rate and makes her very
weak. She nearly dies while giving birth to her and Edward's
half-vampire-half-human daughter, Renesmee, but Edward injects
Bella with his venom to save her life by turning her into a vampire.
A vampire from another coven sees Renesmee and mistakes her for
an "immortal child", the existence of which violates vampire rules,
and informs the Volturi. The Cullens gather vampire witnesses who
can verify that the child is not one of the immortal children. The
Cullens and their witnesses convince the Volturi that Renesmee is
not a danger to vampires or their secret, and they are left in peace.