Hi my name is Malcolm, my wife got an ultrasound today and the doctor said the ultrasound showed 8 weeks but they always show bigger than what really is so we have to subtract two weeks from that. meaning my wife would be 6 weeks pregnant? is that the truth?
Hi, I understand your query.  While reporting for sonography of pregnant uterus, doctor can not read it exactly as- - menstrual cycle, Ovulation have personal differences & conception can not be predicted(it's a co incidence)exactly. To give an overall possible accuracy. The reading has to be understood to be +/- two weeks of the estimated report.  So your guess is correct, your wife is round about 6 weeks pregnant.  Thanks.