According to my last menst period I am 8 weeks and 5 days pregnant. Last week I went to an ultrasound facility which they measured the baby at 8 weeks. Making today 9 weeks. I was able to schedule my first visit with my dr today and she told me that my uterus seemed smaller than what she thought. Her chart read about 6 weeks. I am confused how a sono last week measured 8 weeks with a hb of 170 but by her feeling my uterus she said 6. What can I make of this?