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.
Fallopian tube. From Wikipedia, the free encyclopedia. The fallopian tubes (also known as oviducts and uterine tubes) connect the ovaries to the uterus, and let the ovum pass into the uterus where they are able to be fertilized by sperm during sexual intercourse or other ways, such as artificial insemination.