Is this a symptom of ovarian cancer

hello. this is my first time to this board. cancer runs in my family, from lung cancer to cervical cancer. lately, for about a month now, i have had pain during intercourse. the pain is on the right side near my ovaries. during intercourse it felt as though someone was inserting a sharp tube up me on that side, and it hurt really bad. i also experience pain there from time to time when i'm not engaging in intercourse. i will get the pain when i'm sitting or trying to go to sleep. i had gone to my ob/gyn and he gave me a pelvic exam and stated i should get a pelvic/transvaginal ultrasound done, to rule out cysts or anything else. i go for my appointment in two weeks and i am kind of nervous. what else should i look for? thanks, pb.