Period 2 weeks early (short mostly spotting), morning nausea, headaches and backaches, light pain in nipples - ???

Check for...: Check for pregnancy first since these symptoms are very suggestive. If not pregnant and having abnormal vaginal spotting along with the symptoms you describe it could be associated with a vaginal infection or any hormonal irregularity. In that case testing is necessary, so if symptoms persist make an appointment with your GYN provider.