XP from BMB:measuring behind now

wendalsue

Mobile bumpies:  xp from bmb (Apr 13): measuring behind now 

At my 33w 4d appt, I'm measuring 30w.  I didn't think this was a reason to get too worked up, but the OB has ordered a growth u/s which I was told I would not get unless there was a problem.  I'm not too worried because I've seen a lot of posts on here about people measuring behind toward the end.  This could just be because he dropped right, or is transverse?  Who else has had this happen?