Dancin_trancy

I had a Ectopic (Tubal) Pregnancy two years ago. My family has a history of ovarian cyst among other "women" problems. I was told last time I went for my exam that I have cancerous cells on my cervix that is being checked on periodically. I am currently on birth control, have been for around a year and a half. I have not missed any pills, I started my cycle around 3 weeks ago and still have breakthrough bleeding. Very light, but enough to be noticed, I do have a tender area on my left side to the right of my pelvic bone. I have light pain that can last for a few minutes, but I also get sharp pains as well. I know I should just got to the Dr., it would answer all my ?'s, but what I went through 2 years ago was very scary for me. I am scared to be told I have anything, and probably wont go till the last minute but I would like some comments if anyone has symptoms close to mine. What could the bleeding be a sign of? Thank you sooo much in advance!