Okay so I had an ultrasound done a dating ultrasound because I did not no my last period an I was told I was 6w and 4d and I was she feb 26 and I conceived June 5 I then had another ultrasound when I was 8w 6d but another ultrasound lady said that I was actually 9w and 1 day and conceived June 3 but she never changed it in my doctor reports so what one should I go by . The first because he was an embro ?