My moms Dr. got my sister birth date wrong so my sister was a few days late.....They thought she ended up being two or so weeks early.
But if you want to change a doctor go for it.
Hope this helped

Let us know what second doctors opinion is Natalie.

I was pg last nov and when i went for my 12 week scan wastold i was only 8weeks 5days, That was on a tuesday but then i had a bleed on the thursday and my midwife,and hosp didnt want to know i had another bleed a month later and was sent for a scan and was then told it had been deadfor a month,you got away lightly, but im 5months and2weeks pg now and allis going well

Yes.

Today I made an appt for another DR in the practice I get to meet her when I come back from my trip. I'm very happy she's a woman.
I'm really nervous because he got me confused with a due date at a much earlier date. I'm 4 months now my real due date is January 9th
So he was off by a lot but now I'm sooooo nervous because I'm almost half way and I have nothing ready for the babies.

I would switch doctors as well.