I am about 6 weeks 2 days pregnant according to an ultrasound I had yesterday. According to my last menstrual period I would be 7 weeks 3 days. I have had 2 ultrasounds and the baby is growing and we saw a heartbeat at 6 weeks one day but my hcg levels have been high, but not doubling. I also knew i was pregnant from a hpt at barely 3 weeks if i am really only 6 weeks 2 days. Could this be a miscarriage in the making or is it possible the baby is measuring small but I am really 7 weeks? I'm trying not to worry but I am. Any similar situations?