So I had only found out about 2 weeks ago that I'm pregnant and got sent for a blood test to confirm it and was told I'm 6 weeks along so today I went for a dating ultrasound to see exactly how far along I am and it came back as 17 weeks. Although she was having trouble measuring the head.. Can anyone explain to me how this is possible? Unless my doctor read the blood test results wrong but I just find it extremely impossible to be 17 weeks along as I've only just started noticing my body changing along with other things.. I'll post a photo of my blood test results if anyone can help me out. And also my ultrasound film does not state how far along I am. Thanks!