Hi I am a 28 year old female with severe lower back pain, abdominal pain, spotting, severe lymph node pain on the left side and brown discharge. I have been taking birth control for about 6 weeks now, about 4 weeks of taking the birth control I had severe breast pain, nausea, and extreme mood swings. I took 2 pregnancy test to rule out pregnancy, my tubes are tied, but this has been going on for 3 weeks now. What could my issue be?