And how can an ultrasound pinpoint your pregnancy and lmp if your not sure about lmp i never understood how pregnancy could go off lmp if you didnt rememberAnswer Question
Asked by Anonymous at 2:42 AM on May. 18, 2011 in Pregnancy
Answer by lilmommy10805 at 2:45 AM on May. 18, 2011
They do calculations based on the length of your babies bones and the length of the average baby's bones. These calculations are more accurate during early pregnancies when all babies are pretty much the same growth rate and less accurate later as the individual's size varies more. Ask the technician or doctor what the standard deviation is on his/her measurements. If I remember correctly at 10-12 weeks it is accurate within 5 days.
Answer by LoveMyDog at 10:49 AM on May. 18, 2011