Hello and Welcome to ‘Ask A Doctor’ service. I have reviewed your query and here is my advice. The possible causes of your spotting are : -Sometimes in early pregnancy because of small gestational sac which cannot entirely cover the uterine cavity, spotting can come from uncovered endometrium especially during the dates of previous menstrual periods. -Impending abortion, subchorionic hemorrhage -Local lesions like cervical erosion, polyp etc. As your previous ultrasound was normal, there may not be any major problem. But if you persistently having the spotting, better to consult your gynecologist again, get examined and undergo repeat ultrasound. With this workup the possible cause of your problem can be identified and treatment can be taken accordingly. Hope I have answered your query and I will be happy to answer any further follow-up queries. Take care.