I'm about 4 weeks right now. My hcg levels have been tested three times and they are going up perfectly. I started spotting dark brown on Sunday and then bleeding dark red (not like a period but a little more than light spotting) yesterday & today. Very mild cramping. Dr is not concerned at all. He did a pelvic exam and everything seemed fine. I don't have an ultrasound for two weeks so I'm freaking out about why I am bleeding!