Abdominal ultrasound


So today we paid to get an ultrasound I’ve been having really bad anxiety due to a chemical over a year ago. I should have been 6 week 1 day from the date of my LMP. But I only measured at 5 weeks 1 day. Now I have even more anxiety I got a positive pregnancy test feb 2 that’s almost 2 weeks ago. And I’ve been having sore boobs for about a week. Constipation from the moment I found out. Could the abdominal be off or did I just find out really really early. Or could there be something wrong 😩