Some doctors are dumb😡

How the hell can they get my due date wrong so many times? According to my LMP I am due May 8 I believe (LMP aug. 1, 2017) I’ve been told I’m due May 8th May 22 May 23 and April 17th!!! Last dr said I was measuring 32 and due April 17 (last Tuesday) hospital (yesterday) says I’m only 28 weeks and due May 23!! I swear I don’t know when this boy is coming or how he’s actually doing!! Mommas bad side about to come out😒😒 I’m getting severely frustrated.