How far along does this look?

The US tech always does ultrasounds but never tells me how far along I am. This was my US from my last apt on May 29th. I had another apt yesterday on 6/12 with no ultrasound. My doctor tried using the Doppler on my belly but couldn’t find a heartbeat she said it was too early. I thought I’d be about 8 weeks almost 9 but she had this circle thing hanging off her neck and she told me I was about 7 weeks 5 days. I thought my last ultrasound showed a good 6 wk US but now I’m kind of confused.