My last period was May 17th. Got my bfp on Jun 12th.

Today I had an abdominal ultrasound. Instead of being 6 weeks and 1 day, they are saying I'm only 5 weeks and a few days. All we could see was the yolk sac. I go back in 2 weeks to see if we can see more.

That means I tested positive at 3 weeks 2-3 days or so? Not talking about a faint positive either. Was a decently dark line.

Is this normal? I've had missed miscarriages in the past and a blighted ovum, so I am a bit worried..