Elena Gilbert in the books does not have children,as in the series.So,maybe you thought of Nina Dobrev who plays Elena in the series - no she hasn't got any children.
The uterus is part of a woman's reproductive system that is located in the pelvis between the bladder and the rectum. The uterus is the hollow, pear-shaped organ where a baby grows. The narrow, lower portion of the uterus is called the cervix. The broad, middle part of the uterus is called the body, or the corpus. The dome-shaped top of the uterus is called the fundus. The fallopian tubes extend from either side of the top of the uterus to the ovaries.
Uterine tube (Fallopian tube) The uterine tube (fallopian tube) carries an egg from the ovary to the uterus. Unless a biological abnormality, surgery, or ectopic pregnancy caused the loss of one tube, women should have two uterine tubes in their bodies. A section of the fallopian tubes, called the ampulla, is generally where an egg is fertilized by a manâs sperm. The resulting fertilized egg then moves to the uterus where it continues to develop until birth.