Does this mean early delivery?

Paulette
My doctor told me my due date will be around 9/18/15 putting me at 31 weeks.  After having an ultrasound, the AUA (untrasound age) showed 33 weeks and the EDD (estimated due date) said 9/7/15. The doctor didn't mention the change, I just read it on the print out. Does this mean I should continue thinking the later due date?