First scan

Cheryl

I had my first midwife app yesterday and she said I’m 7 weeks 5 days .

Im very confused with my dates so if anyone can maybe help me thay be great .

I had my last period 28th April so I’m guessing midwife is dating from then. But I had my first scan and they says I’m 4 weeks I was ovulation 5 weeks ago.

Has anyone had any issues like this also?