okayy thanks guys so much really helped
I agree they're most likely just making sure that baby is ready for the world in the chance they are born early. ;-)
oh okay.. It's just they told me that I wouldn't have any more ultrsounds and now there doing one makes it seem like something may be wrong!
They are probably checking for size and lung maturity. Don't worry! My friend had to have this done and her baby was perfectly fine!