I have Nexplanon birth control is should have are will be ending this week . I had a serious cold , and now its just small nothing major but its been about 3 weeks I been sick now I have back pain , sore nipples , nausea ,and brown discharge also abdominal pain. Could this just be signs that its ending ?Also I've lost 2 pounds and I can feel my bones on the top of stomach feel wearied. I weigh 275 btw .