___ Estimate the due date
___ Detect fetal motion
___ Determine the stage of pregnancy from the size of the fetal head, abdomen, or femur
___ Reveal if there is more than one fetus
___ Show the amount of amniotic fluid present
___ Identify fetal abnormalities
___ Check the size, location, and condition of the placenta
___ Determine the safest place to carry out certain tests, such as amniocentesis or chorionic villus sampling (CVS)
Excerpted from the AmericanBaby.com Ages & Stages weekly prenatal newsletter, Week 11.
Originally published on AmericanBaby.com, August 2005.