My girlfriend took a plan b about 3 months ago in december and started having irregular periods, random and extremely painful cramps since then. She bled twice in december, january and february but has not bled at all for march. Each period lasted about 12 days (5 days light bleeding and 7 heavy bleeding) and about 2 weeks ago started to see red spots/ rash on her stomach area. Around this same time she started feeling lightheaded and ill and nauseous after eating. All pregnancy tests taken come back negative. What could be the issue here?