what's more accurate for your delivery due date?? the baby's measurements or the measurements of your cervix? with my 1st son, our 3d ultrasound tech gave us a due date that was 3 weeks AHEAD of what my OBGYN gave us (based off of the baby's measurements) and my son was actually born just three days after her. so I felt she was really accurate.

I am now pregnant with our second son, and again he is measuring about 2.5 - 3 weeks ahead but I just had my cervix measured recently by my OBGYN due to having a lot of pressure and she is still sticking with our original due date.

what do you think is more accurate in your opinion?