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.
The uterus has four major regions : the fundus is the broad , curved upper area in which the fallopian tubes connect to the uterus ; the body , the main part of the uterus , starts directly below the level of the fallopian tubes and continues downward until the uterine walls and cavity begin to narrow ; the isthmus is the lower , narrow neck region ...