I had an early scan at what I thought was almost 6 weeks but they told me it was more like only nearly 5, I think they said I was 4+5 or something, when I went for my dating it was moved to me being nearly 2 weeks in front of what I was first told by my early scan
They stuck with what I was told at 11 weeks as my 20 weeks matched up. I think I'd had about 3 different due dates with George lol, I was told the 29th of June, then 4th July, then they settled on 22nd, he came on the 26th june.