I am in the process of waiting to see my ob, I have an IUD, almost 3 years now, and have had a regular cycle like clockwork. LMP was June 13,2011, neg for preg. by home tests, and bloodwork done at primary dr. Ive been having left sided pain, right next to pubic area. Not constant,-intermittent,but sharp. Had bloodwork done, nothing abnormal, had pelvic ultrasound- showing a left sided follicular cyst measuring 1.7x1.8 by 1.9 cm. Had minor spotting (dark brown) 8-1-11, only. and am waiting to see ob. What does this mean?