I am 30 year old pregnant, my last menustrual period happened on 31/3/2013. I got ultrasound scan report today June 21 2013 which says, Nuchal Translucency = 0.9 mm
CRL = 5.6 cms = 12.3 weeks
BPD = 2.3 cms = 12.5 weeks
Head Circumstance = 7.3 cms = 12.5 weeks

Impression = single live foetus of 12.5 weeks
what is the exact weeks of my pregnancy and how is the baby's health.

These are questions for your personal doctor.