Endometriosis Support Group
Endometriosis is a common medical condition where the tissue lining the uterus is found outside of the uterus, typically affecting other organs in the pelvis. The condition can lead to serious health problems, primarily pain and infertility. A major symptom of endometriosis is pain, mostly in the lower abdomen, lower back, and pelvic area.

Could you be pregnant? Possibly. I still ovulated on it and don't think it would be a great birth control. HOWEVER, I think there is still a very good chance that the pill is to blame for your missing period. Keep testing, but perhaps you should call your dr and ask for a different bc pill!