two weeks sooner ?

Melanie
Just a bit worried ?
So according to my given due date April 3rd I am 33 weeks 
Two days ago I had my check up, everything was looking good, my doctor sent me on my way saying see you in 2 weeks you'll be 37weeks... didn't pay any mind 
Next day I had an ultrasound, on my pictures it says 35w0d ...
Am I 35 weeks ? Should I call my doctor and ask ?  Ahh 😧
#FTM