My Daughter Had Petit Mal Seizures As A Child And

My daughter had Petit Mal Seizures as a child and took Depakote for many years. She finally grew out of them when she was a teenager and was slowly weaned off the medicine. She is now expecting a baby at 25 yrs. old and says she is feeling the same way she used to when she had these absence seizures. Could they be coming back and is it because of her pregnancy?