They have stuffed up my due date!!!

So my whole pregnancy I have been going by my due date being November 22nd. As my last period was on the 15th February which would make me 37.2 weeks. I've had 5 ultrasounds. 4 have said that I'm due on the 22nd and one has said the 3rd of December. My hospital have been so rude. They are trying to tell me I'm due the 3rd of December which I would only be around 35-36 weeks when I had my period the 15th of February. My baby is measuring almost 38 weeks. So they are over two weeks out!!! I've lost my plug, have had contractions and my baby is already engaged...I've had one doctor say I'm measuring perfectly at 37 weeks and then others saying I'm only around 35-36 and they can't understand why I'm measuring so far ahead...how does all of this make sense? I don't want to be induced or a c section but I feel like they might suggest if they think my baby is too big when really I'm just actually due on the 22nd!!!!