Ulstrasound shows new due date

Samantha

My app said I was 8 weeks 3 days(EDD 10/18)...I have irregular cycles believe I ovulated late. I was thinking that meant I would be 7 weeks 3 days (EDD 10/24)

My ultrasound today showed everything, gestational sac, yolk sac, baby, and heartbeat 💓

But I measured 6weeks exactly(EDD 11/3). Am I right to believe that everything is ok, I just ovulated much later than I thought?

Anyone else have something like this ?